Publication

2023

Kim, D., I. K. Ocampo, R. F. Smith, F. Coppari, M. Millot, J. K. Wicks, J. R. Rygg, J. H. Eggert, and T. S. Duffy, "Ramp compression of germanium dioxide to extreme conditions: Phase transitions in an SiO2 analogPhysical Review X, 13, 031025, 2023.

Payne, S. S., and T. S. Duffy, "The role of calcite mineral elastic moduli in carbonate rock physicsLeading Edge 42, 277-284, 2023.

Rucks, M. J., G. J. Finkelstein, D. Zhang, P. K. Dera, and T. S. Duffy, "Single-crystal X-ray diffraction of fluorapatite to 61 GPaAmerican Mineralogist, 109, 731-737, 2023.

Rucks, M. J., J. M. Winey, Y. Toyoda, Y. M Gupta, and T. S. Duffy, "Shock compression of fluorapatite to 120 GPaJournal of Geophysical Research: Planets, 128, e2022JE007642, 2023.

Hari, A., R. Hari, P. G. Heighway, R. F. Smith, T. S. Duffy, M. Sims, S. Singh, D. E. Fratanduono, C. A. Bolme, A. E. Gleason, F. Coppari, H. J. Lee, E. Granados, P. Heimann, J. H. Eggert, and J. K. Wicks, "High pressure phase transition and strength estimate in polycrystalline alumina during laser-driven shock compressionJournal of Physics Condensed Matter, 35, 094002, 2023.

 

2022

Ocampo, I., J. M. Winey, Y. Toyoda, and T. S. Duffy, "Dynamic compression of [100] MgF2 single crystals: Shock-induced polymorphism to highly coordinated structuresPhysical Review B, 144108, 2022.

Krygier, A., C. E. Wehrenberg, J. Bernier, S. Clarke, A. L. Coleman, F. Coppari, T. S. Duffy, M. G. Gorman, M. Hohenberger, D. Kalantar, G. E. Kemp, S. F. Khan, C. Krauland, R. G. Kraus, A. E. Lazicki, M. J. MacDonald, A. G. MacPhee, E. Marley, M. C. Marshall, M. May, J. M. McNaney, M. Millot, Y. Ping, P. Poole, J. R. Rygg, M. Schneider, H. Sio, S. Stoupin, D Swift, C. Yeamans, T. Zobrist, R. F. Smith, and J. H. Eggert, "X-ray source characterization and sample heating on x-ray diffraction experiments at the National Ignition FacilityPhysics of Plasmas 29, 103302, 2022.

Duffy, T. S., New analysis of shock compression data for selected silicates, in Static and Dynamic High-Pressure Mineral Physics, edited by Y. Fei and M. J. Walter, Cambridge University Press, 113-134, 2022.

Rastogi, V., R. F. Smith, D. C. Swift, R. J. Briggs, M. G. Gorman, C. Krill, A. L. Coleman, D. E. Fratanduono, J. H. Eggert, C. A. Bolme, F. Coppari, A. E. Gleason, H. J. Lee, P. Heimann, T. S. Duffy, and J. K. Wicks, "Femtosecond diffraction studies of the sodium chloride phase diagram under laser shock compressionJournal of Applied Physics, 132, 085901, 2022.

Smith, R. F., V. Rastogi, A. E. Lazicki, M. G. Gorman, R. Briggs, A. L. Coleman, C. Davis, S. Singh, D. McGonegle, S. M. Clarke, T. Volz, T. Hutchinson, C. McGuire, D. E. Fratanduono, D. C. Swift, E. Folsom, C. A. Bolme, A. E. Gleason, F. Coppari, H. J. Lee, B. Nagler, E. Cunningham, P. Heimann, R, G. Kraus, R. E. Rudd, T. S. Duffy, J. H. Eggert, and J. K. Wicks, “Development of slurry targets for high repetition-rate x-ray free electron laser experiments” Journal of Applied Physics, 131, 245901, 2022.

Kim, D., R. F. Smith, I. Ocampo, F. Coppari, M.C. Marshall, M. K. Ginnane, J. K. Wicks, S. J. Tracy, M. Millot, A. E. Lazicki, J.R. Rygg, J. H. Eggert, and T. S. Duffy, "Structure and density of silicon carbide to 1.5 TPa and implications for extrasolar planetsNature Communications, 13, 2260, 2022.

Dutta, R., S. J. Tracy, F. Miozzi, K. Luo, J. Yang, R. E. Cohen, P. C. Burnley, D Smith, Y. Meng, S. Chariton, V. B. Prakapenka, and T. S. Duffy, “Ultrahigh pressure disordered eight-coordinated phase of Mg2GeO4: Analogue for super-Earth mantlesProceedings of the National Academy of Sciences of the United States of America, 119, e2114424119, 2022.

 

2021

Renganathan, P., T. S. Duffy, and Y. M. Gupta, "Sound velocities in shock compressed soda lime glass: Melting and liquid state response." Physical Review B, 104, 014113, 2021.

Han, S.,  R. F. Smith, D. Kim, J. K. Wicks, J. R. Rygg, A. E. Lazicki, J. H. Eggert, and T. S. Duffy, "Polymorphism of gold under laser-based ramp compression to 690 GPa,"  Physical Review B, 184109, 2021.

Coppari, F., R. F. Smith, J. Wang, M. Millot, D. Kim, S. Hamel, J. H. Eggert, and T. S. Duffy, "Implications of the iron oxide phase transition on the interiors of rocky exoplanets.Nature Geoscience, 14, 121-126, 2021.

Kim, D., S. J. Tracy, R. F Smith., A. E. Gleason, C. A. Bolme, V. B. Prakapenka, K. Appel, S. Speziale, J. K. Wicks, E. J. Berryman, S. K. Han., M. Schoelmerich, H. J Lee., B. Nagler,  E. F. Cunningham, M. Akin, P. D. Asimow., J. H. Eggert, and T. S. Duffy, "Femtosecond X-ray diffraction of laser-shocked forsterite, (Mg2SiO4), to122 GPa." Journal of Geophysical Research: Solid Earth, 126, e2020JB020337, 2021.

 

2020

Glam, B., S. J. Tracy, R. F. Smith, J. K. Wicks., D. E. Fratanduono, A. E. Gleason, C. A. Bolme, V. B. Prakapenka , S. Speziale, K. Appel, H. J. Lee, A. MacKinnon, F. Tavella, J. H. Eggert, and T. S. Duffy, "Structure of boron carbide under laser-based shock-compression at 51 GPa.AIP Conference Proceedings, 2272, 100010, 2020.

S. J. Tracy, S. J. Turneaure, and T. S. Duffy, Structural response of α-quartz under plate-impact shock compression." Science Advances, 6, 35, eabb3913, 2020.

 

2019

Berryman, E. J., J. M. Winey, Y. M. Gupta, and T. S. Duffy, "Sound Velocities in Shock-Synthesized Stishovite to 72 GPa." Geophysical Research Letters, 46, 23, 13695-13703, 2019.

Berryman, E.J., D. Zhang., B. Wunder, and T. S. Duffy, "Compressibility of synthetic Mg-Al tourmalines to 60 GPa.American Mineralogist 104, 1005-1015, 2019.

Tracy, S. J., R. F. Smith, J.K. Wicks, D. E. Fratanduono, A. E. Gleason, C. A. Bolme, V. B. Prakapenka, S. Speziale, K. Appel, and A. Fernandez-Pañella, et al., "In situ observation of a phase transition in silicon carbide under shock compression using pulsed x-ray diffraction.Physical Review B, 99, 214106 1-7, 2019.

Dutta, R., E. Greenberg, V. B. Prakapenka, and T. S. Duffy, "Phase transitions beyond post-perovskite in NaMgF3 to 160 GPa.Proceedings of the National Academy of Sciences, 116, 19324–19329, 2019.

Duffy, T. S. and R. F. Smith, "Ultra-high pressure dynamic compression of geological materials.Frontiers in Earth Science, 7, 23, 2019.

Dutta, R., B. Kiefer, E. Greenberg, V. B. Prakapenka, and T. S. Duffy, "Ultrahigh-pressure behavior of AO2 (A = Sn, Pb, Hf) compounds.The Journal of Physical Chemistry C, 123, 27735-27741, 2019. 

 

2018

Wicks, J. K., R. F. Smith, D. E. Fratanduono, F. Coppari, R. G. Kraus, M. G. Newman, J. R. Rygg, J. H. Eggert, and T. S. Duffy, "Crystal structure and equation of state of Fe-Si alloys at super-Earth core conditions.Science Advances, 4, eaao5864, 2018.

Smith, R.F., D. E. Fratanduono, D. G. Braun, T. S. Duffy, J. K. Wicks, P. M. Celliers, S. J. Ali, A. Fernandez-Pañella, R. G. Kraus, and D. C Swift, et al., "Equation of state of iron under core conditions of large rocky exoplanets.Nature Astronomy, 2, 2018. (Correction)

Dutta, R., C. E. White, E. Greenberg, V. B. Prakapenka, and T. S. Duffy,  "Equation of state of the α-PbO2 and Pa3-type phases of GeO2 to 120 GPa.Physical Review B, 98, 2018. 

Tracy, S. J., S. J. Turneaure, and T. S. Duffy, "In situ X-ray diffraction of shock-compressed fused silica." Phys. Rev. Lett., 120, 135702, 2018.

Dutta, R., S. J. Tracy, C. V. Stan, V. B. Prakapenka, R. J. Cava, and T. S. Duffy, "Phase stability of iron germanate FeGeO3 to 127 GPa.Physics and Chemistry of Minerals, 45, 2018.

Duffy, T. S., "Single-crystal elastic properties of minerals and related materials with cubic symmetry.American Mineralogist, 103, 6, 977-988, 2018.

Mi, Z., S. R. Shieh, A. Kavner, B. Kiefer, H.-R. Wenk, and T. S. Duffy, "Strength and texture of sodium chloride to 56 GPa.Journal of Applied Physics, 123, 135901, 2018.

 

2017

Stan, C.V., R. Dutta, R. J. Cava, V. B. Prakapenka, and T. S. Duffy, "High-pressure study of perovskites and post-perovskites in the (Mg,Fe)GeO3 system.Inorganic Chemistry, 56, 14, 8026-8035, 2017.

Dutta, R., S. J. Tracy, C. V. Stan, V. B. Prakapenka, R. J. Cava, and T. S. Duffy, "Phase stability of iron germanate, FeGeO3, to 127 GPa.Physics and Chemistry of Minerals 45, 367-379, 2017.

 

2016

Wicks, J. and T. S. Duffy, "Crystal structures of minerals in the lower mantle." In Deep Earth: Physics and Chemistry of the Lower Mantle and Core. American Geophysical Union, 68-88, 2016.

Dorfman, S.M., S. E. Dutton, V. Potapkin, A. I. Chumakov, J.-P. Rueff, P. Chow, Y. Xiao, R. J. Cava, T. S. Duffy, and C. A. McCammon, et al., "Electronic transitions of iron in almandine-composition glass to 91 GPa.American Mineralogist, 101, 1659-1667, 2016.

Hong, X., L. Ehm, Z. Zhong, S. Ghose, T. S. Duffy, and D. J. Weidner, "High-energy X-ray focusing and applications to pair distribution function investigation of Pt and Au nanoparticles at high pressures.Sci. Rep., 6, 2016.

Stan, C.V., R. Dutta, C. E. White, V. B. Prakapenka, and T. S. Duffy, "High-pressure polymorphism of PbF2 to 75 GPa.Physical Review B, 94, 024104, 2016.

Wang, J., F. Coppari, R. F. Smith, J. H. Eggert, A. E. Lazicki, D. E. Fratanduono, J. R. Rygg, T. R. Boehly, G. W. Collins, and T. S. Duffy, "X-ray diffraction of molybdenum under ramp compression to 1 TPa.Physical Review B, 94, 104102, 2016.

 

2015

Ye, Y., S. D. Jacobsen, Z. Mao, T. S. Duffy, S. M. Hirner, and J. R. Smyth, "Crystal structure, thermal expansivity, and elasticity of OH-chondrodite: trends among dense hydrous magnesium silicates.Contributions to Mineralogy and Petrology, 169, 43, 2015.

Wang, J., Z. Mao, F. Jiang, and T. S. Duffy, "Elasticity of single-crystal quartz to 10 GPa.Phys Chem Minerals 42, 203-212 (Includes corrected version of Table 2), 2015.

Stan, C.V., J. Wang, I. S. Zouboulis, V. B. Prakapenka, and T. S. Duffy, "High-pressure phase transition in Y3Fe5O12.Journal of Physics: Condensed Matter, 27, 405401, 2015.

Finkelstein, G. J., P. K. Dera, and T. S. Duffy, "High-pressure phases of cordierite from single-crystal X-ray diffraction to 15 GPaAmerican Mineralogist, 100, 1821-1833, 2015.

Duffy, T. S., N. Madhusudhan, and K. K. M. Lee, “Mineralogy of super-Earth planets.” In: Gerald Schubert (editor-in-chief) Treatise on Geophysics, 2nd edition, Vol 2. Oxford: Elsevier; 149-178, 2015.

Finkelstein, G. J., P. K. Dera, and T. S. Duffy, "Phase transitions in orthopyroxene (En90) to 49 GPa from single-crystal X-ray diffraction.Physics of the Earth and Planetary Interiors, 244, 78-86, 2015.

Hong, X., T. S. Duffy, L. Ehm, and D. J. Weidner, "Pressure-induced stiffness of Au nanoparticles to 71 GPa under quasi-hydrostatic loading." Journal of Physics: Condensed Matter, 27, 485303, 2015.

Dorfman, S. M., S. R. Shieh, and T. S. Duffy, "Strength and texture of Pt compressed to 63 GPa.J. Appl. Phys., 117, 065901, 2015.

Wang, J., F. Coppari, R. F. Smith, J. H. Eggert, A. E. Lazicki, D. E. Fratanduono, J. R. Rygg, T. R. Boehly, G. W. Collins, and T. S. Duffy, "X-ray diffraction of molybdenum under shock compression to 450 GPa.Phys. Rev. B, 92, 2015.

 

2014

Hong, X., M. Newville, T. S. Duffy, S. R. Sutton, and M. L. Rivers, "X-ray absorption spectroscopy of GeO2 glass to 64 GPa." Journal of Physics Condensed Matter, 26, 2014.

Speziale, S., H. Marquardt, and T. S. Duffy, "Brillouin scattering and its application in geosciences.Reviews in Mineralogy and Geochemistry, 78, 543-603, 2014.

Dong, H., S. M. Dorfman, C. M. Holl, Y. Meng, V. B. Prakapenka, D. He, and T. S. Duffy, "Compression of lithium fluoride to 92 GPa.High Pressure Research, 34, 39-48, 2014.

Dorfman, S. M. and T. S. Duffy, "Effect of Fe-enrichment on seismic properties of perovskite and post-perovskite in the deep lower mantle.Geophysical Journal International, 197, 910-919, 2014.

Finkelstein, G. J., P. K. Dera, S. Jahn, A. R. Oganov, C. M. Holl, Y. Meng, and T. S. Duffy, "Phase transitions and equation of state of forsterite to 90 GPa from single-crystal X-ray diffraction and molecular modeling.American Mineralogist, 99, 35-43, 2014.

Hong, X., L. Ehm, and T. S. Duffy, "Polyhedral units and network connectivity in GeO2 glass at high pressure: An X-ray total scattering investigation.Appl. Phys. Lett., 105, 081904, 2014.

Smith, R. F., J. H. Eggert, R. Jeanloz, T. S. Duffy, D. G. Braun, J. R. Patterson, R. E. Rudd, J. Biener, A. E. Lazicki, and A.V. Hamza, et al., "Ramp compression of diamond to five terapascals.Nature, 511, 330-333, 2014.

Wang, J., R. F. Smith, F. Coppari, J. H. Eggert, T. R. Boehly, G. W. Collins, and T. S. Duffy, "Ramp compression of magnesium oxide to 234 GPa.J. Phys.: Conf. Ser., 500, 062002, 2014.

Zouboulis, I.S., F. Jiang, J. Wang, and T. S. Duffy, "Single-crystal elastic constants of magnesium difluoride (MgF2) to 7.4 GPa.Journal of Physics and Chemistry of Solids, 75, 136-141, 2014.

Dong, H., S. M. Dorfman, J. Wang, D. He, and T. S. Duffy, "The strength of ruby from X-ray diffraction under non-hydrostatic compression to 68 GPa.Phys Chem Minerals, 41, 527-535, 2014.

Duffy, T. S., "Earth science: Crystallography's journey to the deep Earth.Nature, 506, 427-429, 2014.

 

2013

Dorfman, S. M., Y. Meng, V. B. Prakapenka, and T. S. Duffy, "Effects of Fe-enrichment on the equation of state and stability of (Mg,Fe)SiO3 perovskite.Earth and Planetary Science Letters, 361, 249-257, 2013.

Coppari, F., R. F. Smith, J. H. Eggert, J. Wang, J. R. Rygg, A. E. Lazicki, J. A. Hawreliak, G. W. Collins., and T. S. Duffy, "Experimental evidence for a phase transition in magnesium oxide at exoplanet pressures.Nature Geoscience, 6, 926-929, 2013.

Hong, X., M. Newville, and T. S. Duffy, "High-pressure X-ray absorption fine structure in the diamond anvil cell and its applications in geological materials.J. Phys.: Conf. Ser., 430, 012120, 2013.

Dera, P. K., G. J. Finkelstein, T. S. Duffy., R. T. Downs, Y. Meng, V. B. Prakapenka, and S. Tkachev, "Metastable high-pressure transformations of orthoferrosilite Fs82.Physics of the Earth and Planetary Interiors, 221, 15-21, 2013.

Wang, J., R. F. Smith., J. H. Eggert, D. G. Braun, T. R. Boehly, J. R. Patterson, P. M. Celliers, R. Jeanloz, G. W. Collins., and T. S. Duffy, "Ramp compression of iron to 273 GPa.J. Appl. Phys. 114, 023513, 2013.

Zhu, H., E. Bozdaǧ, T. S. Duffy, and J. Tromp, "Seismic attenuation beneath Europe and the North Atlantic: Implications for water in the mantle.Earth and Planetary Science Letters, 381, 1-11, 2013.

Smith, R. F., J. H. Eggert, D.C. Swift, J. Wang, T. S. Duffy., D. G. Braun, R. E. Rudd, D. B. Reisman, J.-P. Davis, and M. D. Knudson, et al., "Time-dependence of the alpha to epsilon phase transformation in iron.J. Appl. Phys., 114, 223507, 2013.

Hong, X., M. Newville, T. S. Duffy, S. R. Sutton., and M. L. Rivers, "X-ray absorption spectroscopy of GeO2 glass to 64 GPa.Journal of Physics: Condensed Matter, 26, 035104, 2013.

 

2012

Hong, X., Z. Chen, and T. S. Duffy, "Absolute x-ray energy calibration over a wide energy range using a diffraction-based iterative method." Rev. Sci. Instrum., 83, 063901, 2012.

Dong, H., S. M. Dorfman, Y. Chen, H. Wang, J. Wang, J. Qin, D. He, and T. S. Duffy, "Compressibility and strength of nanocrystalline tungsten boride under compression to 60 GPa.J. Appl. Phys., 111, 123514, 2012.

Dorfman, S. M., V. B. Prakapenka, Y. Meng, and T. S. Duffy, "Intercomparison of pressure standards (Au, Pt, Mo, MgO, NaCl and Ne) to 2.5 Mbar.J. Geophys. Res., 117, 2012.

Mao, Z., J.-F. Lin, S. D. Jacobsen, T. S. Duffy, Y.-Y Chang., J. R. Smyth, D. J.Frost, E. H. Hauri, and V. B. Prakapenka, "Sound velocities of hydrous ringwoodite to 16GPa and 673K.Earth and Planetary Science Letters, 331-332, 112-119, 2012.

Dorfman, S.M., S.R. Shieh, Y. Meng, V. B. Prakapenka, and T. S. Duffy, "Synthesis and equation of state of perovskites in the (Mg,Fe)3 Al2 Si3O12 system to 177 GPa.Earth and Planetary Science Letters 357-358, 194-202, 2012.

 

2011

Duffy, T. S., "Earth science: Probing the core’s light elements.Nature, 479, 480-481, 2011.

Mao, Z., S. D. Jacobsen, Frost D. J., C. A. McCammon, E. H. Hauri, and T. S. Duffy, "Effect of hydration on the single-crystal elasticity of Fe-bearing wadsleyite to 12 GPa." American Mineralogist., 96, 1606-1612, 2011.

Mao, Z., S. M. Dorfman,  S. R. Shieh, J.-F. Lin, V. B. Prakapenka, Y. Meng, and T. S. Duffy, "Equation of state of a high-pressure phase of Gd3Ga5 O12.Phys. Rev. B, 83, 2011.

Shim, S.-H.,  D. LaBounty, and T. S. Duffy, "Raman spectra of bixbyite, Mn2O3, up to 40 GPa.Phys Chem Minerals 38, 685-691, 2011.

Shieh, S.R., S. M. Dorfman, , A. Kubo, V. B. Prakapenka, and T. S. Duffy, "Synthesis and equation of state of post-perovskites in the (Mg,Fe)3Al2Si3O12 system.Earth and Planetary Science Letters, 312, 422-428, 2011.

Liu, W.,  M. L. Whitaker, Q. Liu, L. Wang, N. Nishiyama, Y. Wang, A. Kubo, T. S. Duffy, and B. Li, "Thermal equation of state of CaIrO3 post-perovskite.Phys Chem Minerals 38, 407-417, 2011.

 

2010

Dorfman, S.M., F. Jiang, Z. Mao, A. Kubo, Y. Meng, V. B. Prakapenka, and T. S. Duffy, "Phase transitions and equations of state of alkaline earth fluorides CaF2, SrF2, and BaF2 to Mbar pressures.Phys. Rev. B, 81, 2010.

Wang, J., D. He, and T. S. Duffy, "Stress state of diamond and gold under nonhydrostatic compression to 360 GPa.J. Appl. Phys., 108, 063521, 2010.

Mao, Z., S. D. Jacobsen, F. Jiang, J. R. Smyth, C. M. Holl, D. J. Frost, and T. S. Duffy, "Velocity crossover between hydrous and anhydrous forsterite at high pressures.Earth and Planetary Science Letters, 293, 250-258, 2010.

 

2009

Lin, J.-F., H.-R. Wenk, M. Voltolini, S. Speziale, J. Shu, and T. S. Duffy, "Deformation of lower-mantle ferropericlase (Mg, Fe)O across the electronic spin transition.Phys Chem Minerals, 36, 585-592, 2009.

Dong, H., D. He, T. S. Duffy, and Y. Zhao, "Elastic moduli and strength of nanocrystalline cubic BC2N from x-ray diffraction under nonhydrostatic compression.Phys. Rev. B, 79, 2009.

Jiang, F.,  G. D. Gwanmesia,  T. I. Dyuzheva, and T. S. Duffy, "Elasticity of stishovite and acoustic mode softening under high pressure by Brillouin scattering.Physics of the Earth and Planetary Interiors, 172, 235-240, 2009.

Shieh, S.R., T. S. Duffy, Z. Liu, and E. Ohtani,  "High-pressure infrared spectroscopy of the dense hydrous magnesium silicates phase D and phase E.Physics of the Earth and Planetary Interiors, 175, 2009.

 

2008

Raitses, Y.,  C. H. Skinner, F. Jiang, and T. S. Duffy, "Raman spectroscopy of carbon dust samples from NSTX.Journal of Nuclear Materials, 375, 365-369, 2008.

Hirose, K., N. Takafuji, K. Fujino, S. R. Shieh, and T. S. Duffy, "Iron partitioning between perovskite and post-perovskite: A transmission electron microscope study." American Mineralogist, 93, 1678-1681, 2008.

Kubo, A., Y. Wang, C. E. Runge, T. Uchida, B. Kiefer, N. Nishiyama, and T. S. Duffy,  "Melting curve of silicon to 15 GPa determined by two-dimensional angle-dispersive diffraction using a Kawai-type apparatus with X-ray transparent sintered diamond anvils." Journal of Physics and Chemistry of Solids, 69, 2255-2260, 2008.

Duffy, T. S., "Some recent advances in understanding the mineralogy of Earth’s deep mantle.Philosophical Transactions of the Royal Society of London A: Mathematical, Physical and Engineering Sciences 366, 4273-4293, 2008.

Mao, Z., S. D. Jacobsen, F. Jiang, J. R. Smyth, C. M. Holl, and T. S. Duffy, "Elasticity of hydrous wadsleyite to 12 GPa: Implications for Earth's transition zone.Geophysical Research Letters, 35, 2008.

Kubo, A., B. Kiefer, S.-H. Shim, G. Shen, V. B. Prakapenka, and T. S. Duffy,  "Rietveld structure refinement of MgGeO3 post-perovskite phase to 1 Mbar." American Mineralogist, 93, 965-976, 2008.

Miyagi, L., N. Nishiyama, Y. Wang, A. Kubo, D. V. West, R. J. Cava, T. S. Duffy,, and H.-R. Wenk,   "Deformation and texture development in CaIrO3 post-perovskite phase up to 6 GPa and 1300 K." Earth and Planetary Science Letters, 268, 515-525, 2008.

Duffy, T. S., "Strength of materials under static loading in the diamond anvil cell." AIP Conference Proceedings, 955, 639-644, 2008.

Jacobsen, S. D., F. Jiang, Z. Mao, T. S. Duffy, J. R. Smyth, C. M. Holl, and D. J. Frost,  "Effects of hydration on the elastic properties of olivine." Geophysical Research Letters, 35, 2008.  (Erratum)

Mao, Z., S. D. Jacobsen, F. Jiang, J. R. Smyth, C. M. Holl, D. J. Frost, and T. S. Duffy, "Single-crystal elasticity of wadsleyites, β-Mg2SiO4 containing 0.37-1.66 wt % H2O.Earth and Planetary Science Letters, 266, 78-89, 2008. (Erratum)

Jiang, F., J. Majzlan, S. Speziale S., D. He, and T. S. Duffy,  "Single-crystal elasticity of diaspore, AlOOH, to 12 GPa by Brillouin scattering." Physics of the Earth and Planetary Interiors, 170, 221-228, 2008.

Duffy, T.S., "Mineralogy at the extremes." Nature, 451, 269-270, 2008.

Speziale, S., F. Jiang, Z. Mao,  P. J. M. Monteiro,  H.-R. Wenk, T. S. Duffy, and  F.R. Schilling,  "Single-crystal elastic constants of natural ettringite.Cement and Concrete Research, 38, 885-889, 2008.

 

2007

Merkel, S.,  A. K. McNamara, A. Kubo, S. Speziale,  L. Miyagi, Y. Meng, T. S. Duffy, and H.-R. Wenk, "Deformation of (Mg,Fe) SiO3 post-perovskite and D" anisotropy.Science, 316, 1729-1732, 2007.

Mao, Z., F. Jiang, and T. S. Duffy,  "Single-crystal elasticity of zoisite Ca2Al3 Si3O12(OH) by Brillouin scattering." American Mineralogist, 92, 570-576, 2007.

Wan, J. T. K., T. S. Duffy, S. Scandolo, and R. Car, "First-principles study of density, viscosity, and diffusion coefficients of liquid MgSiO3 at conditions of the Earth's deep mantle." Journal of Geophysical Research: Solid Earth, 112, 2007.

Shim, S., A. Kubo, and T. S. Duffy, "Raman spectroscopy of perovskite and post-perovskite phases of MgGeO3 to 123 GPa.Earth and Planetary Science Letters, 260, 166-178, 2007.

 

2006

Runge, C. E., A. Kubo, B. Kiefer, Y. Meng, V. B. Prakapenka, G. Shen, R. J. Cava, and T. S. Duffy,  "Equation of state of MgGeO3 perovskite to 65 GPa: Comparison with the post-perovskite phase." Physics and Chemistry of Minerals, 33, 699-709, 2006.

Speziale, S., S. R. Shieh, and T. S. Duffy, "High-pressure elasticity of calcium oxide: A comparison between Brillouin spectroscopy and radial X-ray diffraction." Journal of Geophysical Research: Solid Earth, 111, 2006.

Majzlan, J., Speziale S., T. S. Duffy, and P. C. Burns, "Single-crystal elastic properties of alunite, KAl3(SO4)2(OH)6." Physics and Chemistry of Minerals, 33, 567-573 2006.

Jiang, F., S. Speziale, and T. S. Duffy, "Single-crystal elasticity of brucite, Mg(OH)2, to 15 GPa by Brillouin scattering." American Mineralogist, 91, 1893-1900, 2006.

He, D. and T. S. Duffy, "X-ray diffraction study of the static strength of tungsten to 69 GPa." Physical Review B - Condensed Matter and Materials Physics, 73, 2006.

Kubo, A., B. Kiefer, G. Shen, V. B. Prakapenka, R. J. Cava, and T. S. Duffy, "Stability and equation of state of the post-perovskite phase in MgGeO3 to 2 Mbar." Geophysical Research Letters, 33, 2006.

Merkel, S., A. Kubo, L. Miyagi, S. Speziale, T. S. Duffy, H.-K. Mao, and H.-R. Wenk, "Plastic Deformation of MgGeO3 Post-Perovskite at Lower Mantle Pressures.Science, 311, 644-646, 2006.

Shieh, S.R., T. S. Duffy, A. Kubo, G. Shen, V. B. Prakapenka, N. Sata, K. Hirose, and Y. Ohishi, "Equation of state of the post-perovskite phase synthesized from a natural (Mg,Fe)SiO3 orthopyroxene.Proceedings of the National Academy of Sciences of the United States of America 103: 3039-3043 (2006.

Shieh, S.R., A. Kubo, T. S. Duffy, V. B. Prakapenka, and G. Shen, "High-pressure phases in SnO2 to 117 GPa.Phys. Rev. B 73 (2006.

 

2005

Speziale, S., F. Jiang, and T. S. Duffy, "Compositional dependence of the elastic wave velocities of mantle minerals: Implications for seismic properties of mantle rocks." In Earth's Deep Mantle: Structure, Composition, and Evolution, edited by R. van der Hilst, J. D. Bass, J. Matas and J. Trampert, 301-320. Washington, DC: American Geophysical Union, (2005.

Kiefer, B. and T. S. Duffy, "Finite element simulations of the laser-heated diamond-anvil cell.J. Appl. Phys. 97, 114902, 2005.

Kiefer, B., S. R. Shieh, T. S. Duffy, and T. Sekine, "Strength, elasticity, and equation of state of the nanocrystalline cubic silicon nitride γ-Si3N4 to 68 GPa.Phys. Rev. B 72 (2005.

Duffy, T. S., "Synchrotron facilities and the study of the Earth's deep interior.Rep. Prog. Phys. 68:1811-1859 2005.

Yin, H.,  R. L. Peterson,  K. D. Hobart, S. R. Shieh, T. S. Duffy, and J. C. Sturm, "Tunable uniaxial vs biaxial in-plane strain using compliant substrates.Appl. Phys. Lett. 87: 061922  (2005.

Shieh, S.R., T. S. Duffy, and G. Shen, "X-ray diffraction study of phase stability in SiO2 at deep mantle conditions.Earth and Planetary Science Letters 235:273-282 (2005.

 

2004

Jiang, F., S. Speziale, S. R. Shieh, and T. S. Duffy, "Single-crystal elasticity of andradite garnet to 11 GPa.Journal of Physics: Condensed Matter 16:S1041-S1052 (2004.

Speziale, S., T. S. Duffy, and R. J. Angel, "Single-crystal elasticity of fayalite to 12 GPa.J. Geophys. Res. 109, 2004.

Jiang, F., S. Speziale, and T. S. Duffy, "Single-crystal elasticity of grossular- and almandine-rich garnets to 11 GPa by Brillouin scattering.J. Geophys. Res. 109 (2004.

Duffy, T.S., "Deeper understanding." Nature, 430, 409-410, 2004.

Shieh, S.R., T. S. Duffy, and G. Shen,  "Elasticity and strength of calcium silicate perovskite at lower mantle pressures." Physics of the Earth and Planetary Interiors, 143, 93-105, 2004.

Shim, S.-H., T. S. Duffy, R. Jeanloz, and G. Shen, "Stability and crystal structure of MgSiO3 perovskite to the core-mantle boundary.Geophys. Res. Lett., 31, 2004.

He, D., S. R. Shieh, and T. S. Duffy, "Strength and equation of state of boron suboxide from radial x-ray diffraction in a diamond cell under nonhydrostatic compression.Phys. Rev. B, 70, 2004.

Yin, H., K. D. Hobart, F. J. Kub, S. R. Shieh, T. S. Duffy, and J. C. Sturm,  "High-germanium-content SiGe islands formed on compliant oxide by SiGe oxidation.Appl. Phys. Lett., 84, 3624, 2004.

Shim, S.-H., T. S. Duffy, R. R. Jeanloz, C.-S. Yoo, and V. Iota,  "Raman spectroscopy and x-ray diffraction of phase transitions in Cr2O3 to 61 GPa.Phys. Rev. B, 69, 2004.

 

2003

Yin, H., R. Huang, K. D. Hobart, J. Liang, Z. Suo, S. R. Shieh, T. S. Duffy, F.J. Kub, and J.C. Sturm, "Buckling suppression of SiGe islands on compliant substrates.J. Appl. Phys., 94, 6875, 2003.

Kavner, A. and T. S. Duffy, "Elasticity and rheology of platinum under high pressure and nonhydrostatic stress.Phys. Rev. B, 68, 2003.

Speziale, S., F. Jiang, C. L. Caylor, S. Kriminski, C.-S. Zha, R.E. Thorne, and T. S. Duffy, "Sound velocity and elasticity of tetragonal lysozyme crystals by Brillouin spectroscopy.Biophysical Journal, 85, 3202-3213, 2003.

Yin, H., K.D. Hobart, F. J. Kub, S. R. Shieh, T. S. Duffy, and J. C. Sturm, "Strain partition of Si/SiGe and SiO2/SiGe on compliant substrates.Appl. Phys. Lett., 82, 3853, 2003.

 

2002

Shim, S.-H., T. S. Duffy, and K. Takemura, "Equation of state of gold and its application to the phase boundaries near 660 km depth in Earth's mantle.Earth and Planetary Science Letters, 203, 729-739, 2002.

Bo, X.-Z., N. Yao, S. R. Shieh, T. S. Duffy, and J.C. Sturm, "Large-grain polycrystalline silicon films with low intragranular defect density by low-temperature solid-phase crystallization without underlying oxide.J. Appl. Phys., 91, 2910, 2002.

Shieh, S.R. and T. S. Duffy, "Raman spectroscopy of Co(OH)2 at high pressures: Implications for amorphization and hydrogen repulsion.Phys. Rev. B, 66, 2002.

Shim, S.-H. and T. S. Duffy, "Raman spectroscopy of Fe2O3 to 62 GPa.American Mineralogist, 87, 318-326, 2002.

Speziale, S. and T. S. Duffy, "Single-crystal elastic constants of fluorite (CaF2) to 9.3 GPa.Physics and Chemistry of Minerals, 29, 465-472, 2002.

Yin, H., R. Huang, K.D. Hobart, Z. Suo, T. S. Kuan, C. K. Inoki, S. R. Shieh, T. S. Duffy, F. J. Kub, and J. C. Sturm, "Strain relaxation of SiGe islands on compliant oxide.J. Appl. Phys., 91, 9716, 2002.

Shieh, S.R., T. S. Duffy, and B. Li, "Strength and elasticity of SiO2 across the Stishovite – CaCl2-type structural phase Boundary.Phys. Rev. Lett., 89, 2002.

Shim, S.-H., R. Jeanloz, and T. S. Duffy, "Tetragonal structure of CaSiO3 perovskite above 20 GPa.Geophys. Res. Lett. 29, 19-1–19-4, 2002.

 

2001

Kavner, A., T. S. Duffy, and G. Shen, "Phase stability and density of FeS at high pressures and temperatures: implications for the interior structure of Mars.Earth and Planetary Science Letters, 185, 25-33, 2001.

Shim, S.-H., T. S. Duffy, and G. Shen, "The post-spinel transformation in Mg2SiO4 and its relation to the 660-km seismic discontinuity.Nature, 411, 571-574, 2001.

Kavner, A. and T. S. Duffy, "Pressure–volume–temperature paths in the laser-heated diamond anvil cell.J. Appl. Phys., 89, 2001.

Speziale, S., C.-S. Zha., T. S. Duffy, R. J. Hemley, and H.-K. Mao, "Quasi-hydrostatic compression of magnesium oxide to 52 GPa: Implications for the pressure-volume-temperature equation of state.Journal of Geophysical Research: Solid Earth, 106, 515-528, 2001.

Shim, S.-H., T. S. Duffy, and G. Shen, "Stability and Structure of MgSiO3 Perovskite to 2300-Kilometer Depth in Earth's Mantle.Science, 293, 2437-2440, 2001.

Kavner, A. and T. S. Duffy, "Strength and elasticity of ringwoodite at upper mantle pressures.Geophys. Res. Lett., 28, 2691-2694, 2001.

Caylor, C.L., S. Speziale, S. Kriminski, T. S. Duffy, C.-S. Zha, and R. E. Thorne, "Measuring the elastic properties of protein crystals by Brillouin scattering." Journal of Crystal Growth., 232, 498-501, 2001.

 

2000

Shim, S.-H. and T. S. Duffy, "Constraints on the P-V-T equation of state of MgSiO3 perovskite.American Mineralogist, 85, 354-363, 2000.

Shim, S.-H., T. S. Duffy, and G. Shen, "The equation of state of CaSiO3 perovskite to 108 GPa at 300 K.Physics of the Earth and Planetary Interiors, 120, 327-338, 2000.

Shim, S.-H., T. S. Duffy, and G. Shen, "The stability and P-V-T equation of state of CaSiO3 perovskite in the Earth's lower mantle.J. Geophys. Res., 105, 25955-25968, 2000.

 

1999

Duffy, T.S., G. Shen, J. Shu, H.-K. Mao, R. J. Hemley, and A. K. Singh, "Elasticity, shear strength, and equation of state of molybdenum and gold from x-ray diffraction under nonhydrostatic compression to 24 GPa.J. Appl. Phys., 86, 6729, 1999.

Duffy, T. S., G. Shen, , D. L. Heinz,  J. Shu, Y. Ma, H.-K. Mao,  R. J. Hemley, and A. K. Singh, "Lattice strains in gold and rhenium under nonhydrostatic compression to 37 GPa.Phys. Rev. B, 60, 15063-15073, 1999.

 

1998

Zha, C.-S., T. S. Duffy, R. T. Downs, H.-K. Mao, and R. J. Hemley, "Brillouin scattering and X-ray diffraction of San Carlos olivine: direct pressure determination to 32 GPa.Earth and Planetary Science Letters, 159, 25-33, 1998.

Shen, G., H.-K. Mao, R. J. Hemley, T. S. Duffy, and M.L. Rivers, "Melting and crystal structure of iron at high pressures and temperatures.Geophysical Research Letters, 25, 373-376, 1998.

Rivers, M. L., T. S. Duffy, Y. Wang, P. J. Eng, S. R. Sutton, and G. Shen, "A New Facility for High-Pressure Research at the Advanced Photon Source." In Properties of Earth and Planetary Materials at High Pressure and Temperature, 79-87. American Geophysical Union, 1998.

Duffy, T. S. and Y. Wang, "Pressure-volume-temperature equations of state, in Ultrahigh Pressure Mineralogy, edited by R. J. Hemley.Reviews in Mineralogy and Geochemistry, 37, 425-458, 1998.

Mao, H.-K., G. Shen, R. J. Hemley, and T. S. Duffy, "X Ray Diffraction with a Double Hot-Plate Laser-Heated Diamond Cell.`23." In Properties of Earth and Planetary Materials at High Pressure and Temperature, 27-34. X-ray diffraction with a double hot-plate laser-heated diamond cell, in High-Pressure Temperature Research, edited by M. H. Manghnani. Washington, DC: American Geophysical Union, 1998.

Shen, G., T. S. Duffy, Y. Wang, M.L. Rivers, and S. R. Sutton, Studies on materials under ultrahigh P-T at the advanced photon source. Materials Research Society Symposium - Proceedings. 499, 283-288, 1998.

 

1997

Duffy, T. S. and T. J. Ahrens, "Dynamic compression of an Fe–Cr–Ni alloy to 80 GPa.Journal of Applied Physics, 82, 1997.

Zha, C. -S., T. S. Duffy, H.-K. Mao, R. T. Downs, R. J. Hemley, and D. J. Weidner., "Single-crystal elasticity of β-Mg2SiO4 to the pressure of the 410 km seismic discontinuity in the Earth's mantle.Earth and Planetary Science Letters, 147, E9-E15, 1997.

 

1996

Downs, R.T., C.-S. Zha, T. S. Duffy, and L. W. Finger, "Equation of state of forsterite to 17.2 GPa and the effects of pressure media.American Mineralogist, 81, 1996.

Zha, C.-S., T. S. Duffy, R. T. Downs, H.-K. Mao. and R. J. Hemley,  "Sound velocity and elasticity of single-crystal forsterite to 16 GPa.Journal of Geophysical Research: Solid Earth, 101, 17535-17545, 1996.

 

1995

Duffy, T. S. and T. J. Ahrens, "Compressional sound velocity, equation of state, and constitutive response of shock-compressed magnesium oxide.J. Geophys. Res., 100, 529, 1995.

Hemley, R. J., H.-K. Mao, T. S. Duffy, J. H. Eggert, A. F. Goncharov, M. Hanfland, M. Li, M. Somayazulu, W. L. Vos, and C.-S. Zha, "Dense hydrogen in the outer solar system: Implications from recent high‐pressure experiments.AIP Conference Proceedings, 341, 1995.

Duffy, T.S., C.-S Zha., R. T. Downs, H.-K. Mao, and R. J. Hemley, "Elasticity of forsterite to 16 GPa and the composition of the upper mantle.Nature, 378, 170-173, 1995.

Duffy, T.S., R.J. Hemley, and H.-K. Mao, "Equation of state and shear strength at multimegabar pressures: Magnesium oxide to 227 GPa.Phys. Rev. Lett., 74, 1371-1374, 1995.

Duffy, T. S. and R.J. Hemley, "Some like it hot: The temperature structure of the Earth Rev. Geophys., 33, 5, 1995.

Duffy, T.S., C. Meade, Y. Fei, H.-K. Mao, and R. J. Hemley.,  "High-pressure phase transition in brucite, Mg(OH)2.American Mineralogist, 80, 222-230, 1995.

Sekine, T., T. S. Duffy, A. M. Rubin, W. W. Anderson and T. J. Ahrens, "Shock compression and isentropic release of granite.Geophysical Journal International,120, 247-261, 1995.

Duffy, T.S., J. Shu, H.-K. Mao, and R. J. Hemley, "Single-crystal x-ray diffraction of brucite to 14 GPa.Physics and Chemistry of Minerals, 22, 277-281, 1995.

Duffy, T. S., R. J. Hemley, and H.-K. Mao, "Structure and bonding in hydrous minerals at high pressure: Raman spectroscopy of alkaline earth hydroxides.AIP Conference Proceedings, 341, 1995.

 

1994

Zha, C.-S., R. J. Hemley, H.-K. Mao, T. S. Duffy, and C. Meade, "Acoustic velocities and refractive index of SiO2 glass to 57.5 GPa by Brillouin scattering.Phys. Rev. B, 50, 13105-13112, 1994.

Duffy, T. S. and T. J. Ahrens, "Dynamic response of molybdenum shock compressed at 1400 °C.Journal of Applied Physics, 76, 1994.

Duffy, T. S., W. L. Vos, C.-S. Zha, R. J. Hemley, and H.-K. Mao, "Sound velocities in dense hydrogen and the Interior of Jupiter.Science, 263, 1590-1593, 1994.

Duffy, T. S. and T. J. Ahrens, "The temperature sensitivity of elastic wave velocity at high pressure: New results for molybdenum.Geophysical Research Letters, 21, 473-476, 1994.

 

1993

Zha, C.-S., T. S. Duffy, H.-K. Mao, and R. J. Hemley, "Elasticity of hydrogen to 24 GPa from single-crystal Brillouin scattering and synchrotron x-ray diffraction.Phys. Rev. B, 48, 9246-9255, 1993.

Duffy, T. S. and T. J. Ahrens, "Thermal expansion of mantle and core materials at very high pressures.Geophysical Research Letters, 20, 1103-1106, 1993.

 

1992

Duffy, T. S. and T. J. Ahrens, "Hugoniot sound velocities in metals with applications to the Earth's inner core." In High-Pressure Research: Application to Earth and Planetary Sciences, 353-361. American Geophysical Union, 1992.

Duffy, T. S. and T. J. Ahrens, "Lateral variations in lower mantle seismic velocity." In High-Pressure Research: Application to Earth and Planetary Sciences, 197-205. American Geophysical Union, 1992.

Duffy, T. S. and T. J. Ahrens, "Sound velocities at high pressure and temperature and their geophysical implications.J. Geophys. Res., 97, 4503, 1992.

 

1991

Duffy, T. S., T. J. Ahrens, and M. A. Lange, "The shock wave equation of state of brucite Mg(OH)2.J. Geophys. Res., 96, 14319, 1991.

Tyburczy, J. A., T. S. Duffy, T. J. Ahrens, and M. A. Lange, "Shock wave equation of state of serpentine to 150 GPa: Implications for the occurrence of water in the Earth's lower mantle.J. Geophys. Res. 96, 18011, 1991.

 

1989

Duffy, T. S. and D. L. Anderson, "Seismic velocities in mantle minerals and the mineralogy of the upper mantle.J. Geophys. Res. 94, 1895-1912, 1989.

 

1988

Duffy, T. S. and M. T. Vaughan, "Elasticity of enstatite and its relationship to crystal structure.J. Geophys. Res., 93, 384-391, 1988.