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

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

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

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

Duffy, T.S. and Smith R.F. "PDF iconUltra-High Pressure Dynamic Compression of Geological Materials.Frontiers in Earth Science 7 (2019).

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



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

Smith R.F., Fratanduono D.E., Braun D.G., Duffy T.S., Wicks J.K., Celliers P.M., Ali S.J., Fernandez-Pañella A., Kraus R.G., Swift D.C. et al. "PDF iconEquation of state of iron under core conditions of large rocky exoplanets." Nature Astronomy 2:591 (2018). (Correction)

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

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

Dutta R., Tracy S.J., Stan C.V., Prakapenka V.B., Cava R.J. and Duffy T.S. "PDF iconPhase stability of iron germanate FeGeO3 to 127 GPa." Physics and Chemistry of Minerals 45, no. 4 (2018).

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

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



Stan C.V., Dutta R., Cava R.J., Prakapenka V.B. and Duffy T.S. "High-Pressure Study of Perovskites and Postperovskites in the (Mg, Fe) GeO3 System." Inorganic Chemistry 56:8026-8035 (2017).

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



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

Hong X., Ehm L., Zhong Z., Ghose S., Duffy T.S. and Weidner D.J. "PDF iconHigh-energy X-ray focusing and applications to pair distribution function investigation of Pt and Au nanoparticles at high pressures." Sci. Rep. 6:21434 (2016).

Stan C.V., Dutta R., White C.E., Prakapenka V. and Duffy T.S. "PDF iconHigh-pressure polymorphism of PbF2 to 75 GPaPhysical Review B 94 (2016).

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



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

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

Stan C.V., Wang J., Zouboulis I.S., Prakapenka V. and Duffy T.S. "High-pressure phase transition in Y3 Fe5 O12." Journal of Physics: Condensed Matter 27:405401 (2015).

Finkelstein G.J., Dera P.K. and Duffy T.S. "PDF iconHigh-pressure phases of cordierite from single-crystal X-ray diffraction to 15 GPa." American Mineralogist 100:1821-1833 (2015).

Duffy T., Madhusudhan N. and Lee K.K.M.. "PDF iconMineralogy of Super-Earth Planets." In: Gerald Schubert (editor-in-chief) Treatise on Geophysics, 2nd edition, Vol 2. Oxford: Elsevier; p. 149-178.(2015).  

Finkelstein G.J., Dera P.K. and Duffy T.S. "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., Duffy, T.S. Ehm, L. and Weidner D.J. "PDF iconPressure-induced stiffness of Au nanoparticles to 71 GPa under quasi-hydrostatic loading." Journal of Physics: Condensed Matter 27:485303 (2015).

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

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



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

Speziale S., Marquardt H. and Duffy T.S. "Brillouin Scattering and its Application in Geosciences." Reviews in Mineralogy and Geochemistry 78:543-603 (2014).

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

Dorfman S.M. and Duffy T.S. "PDF iconEffect 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., Dera P.K., Jahn S., Oganov A.R., Holl C.M., Meng Y. and Duffy T.S. "PDF iconPhase 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., Ehm L. and Duffy T.S. "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., Eggert J.H., Jeanloz R., Duffy T.S., Braun D.G., Patterson J.R., Rudd R.E., Biener J., Lazicki A.E., Hamza A.V. et al. "PDF iconRamp compression of diamond to five terapascals." Nature 511:330-333 (2014).

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

Zouboulis I.S., Jiang F., Wang J. and Duffy T.S. "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., Dorfman S.M., Wang,J., He D. and Duffy T.S. "PDF iconThe strength of ruby from X-ray diffraction under non-hydrostatic compression to 68 GPa." Phys Chem Minerals 41:527-535 (2014).

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



Dorfman S.M., Meng Y., Prakapenka V.B. and Duffy T.S. "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., Smith R.F., Eggert J.H., Wang J., Rygg J.R., Lazicki A., Hawreliak J.A., Collins G.W. and Duffy T.S. "PDF iconExperimental evidence for a phase transition in magnesium oxide at exoplanet pressures." Nature Geoscience 6:926-929 (2013).

Hong X., Newville M. and Duffy T.S. "PDF iconHigh-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., Finkelstein G.J., Duffy T.S., Downs R.T., Meng Y., Prakapenka V. and Tkachev S. "PDF iconMetastable high-pressure transformations of orthoferrosilite Fs82." Physics of the Earth and Planetary Interiors 221:15-21 (2013).

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

Zhu H., Bozdaǧ E., Duffy T.S. and Tromp J. "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., Eggert J.H., Swift D.C., Wang J., Duffy T.S., Braun D.G., Rudd R.E., Reisman D.B., Davis J.-P., Knudson M.D. et al. "PDF iconTime-dependence of the alpha to epsilon phase transformation in iron.J. Appl. Phys. 114:223507 (2013).

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



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

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

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

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

Dorfman S.M., Shieh S.R., Meng Y., Prakapenka V.B. and Duffy T.S. "PDF iconSynthesis and equation of state of perovskites in the (Mg, Fe)3 Al2 Si3 O12 system to 177 GPa." Earth and Planetary Science Letters 357-358:194-202 (2012).



Duffy T. S. "PDF iconEarth science: Probing the core’s light elements." Nature 479: 480-481 (2011).

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

Mao Z., Dorfman S.M., Shieh S.R., Lin J.F., Prakapenka V.B., Meng Y. and Duffy T.S. "PDF iconEquation of state of a high-pressure phase of Gd3 Ga5 O12." Phys. Rev. B 83 (2011).

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

Shieh S.R., Dorfman, S.M. Kubo, A., Prakapenka V.B. and Duffy T.S. "PDF iconSynthesis and equation of state of post-perovskites in the (Mg, Fe)3 Al2 Si3 O12 system." Earth and Planetary Science Letters 312:422-428 (2011).

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



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

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

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



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

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

Jiang F., Gwanmesia G.D., Dyuzheva T.I. and Duffy T.S. "PDF iconElasticity 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., Duffy T.S., Liu Z. and Ohtani E.  "PDF iconHigh-pressure infrared spectroscopy of the dense hydrous magnesium silicates phase D and phase E.Physics of the Earth and Planetary Interiors 175:106-114 (2009).



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

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

Kubo A., Wang Y., Runge C.E., Uchida T., Kiefer B., Nishiyama N. and Duffy T.S.  "PDF iconMelting 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. "PDF iconSome 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., Jacobsen S.D., Jiang F., Smyth J.R., Holl C.M. and Duffy T.S. "PDF iconElasticity of hydrous wadsleyite to 12 GPa: Implications for Earth's transition zone." Geophysical Research Letters 35 (2008).

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

Miyagi L., Nishiyama N., Wang Y., Kubo A., West D.V., Cava R.J., Duffy T.S. and Wenk H.-R.   "PDF iconDeformation 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. "PDF iconStrength of materials under static loading in the diamond anvil cell." AIP Conference Proceedings 955:639-644 (2008).

Jacobsen S.D., Jiang F., Mao Z., Duffy T.S., Smyth J.R., Holl C.M. and Frost D.J.  2008.  "PDF iconEffects 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. Holl, D. J. Frost, and T. S. Duffy, "PDF iconSingle-crystal elasticity of wadsleyites, β-Mg2SiO4 containing 0.37-1.66 wt % H2O." Earth and Planetary Science Letters, 266, 78-89, 2008 (PDF iconErratum: 268, 540-549, 2008).

Jiang F., Majzlan J., Speziale S., He D. and Duffy T.S.  "PDF iconSingle-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.  "PDF iconMineralogy at the extremes." Nature. 451:269-270 (2008).

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



Merkel S., McNamara A. K., Kubo A., Speziale S.,  Miyagi L., Meng Y.,  Duffy T.S. and Wenk H. - R. "PDF iconDeformation of (Mg, Fe) SiO3 Post-Perovskite and D" Anisotropy." Science 316:1729-1732  (2007).

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

Wan J.T.K., Duffy T.S., Scandolo S. and Car R.  "PDF iconFirst-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., Kubo A. and Duffy, T. S. "PDF iconRaman spectroscopy of perovskite and post-perovskite phases of MgGeO3 to 123 GPa." Earth and Planetary Science Letters 260:166-178.  (2007).



Runge C.E., Kubo A., Kiefer B., Meng Y., Prakapenka V.B., Shen G., Cava R.J. and  Duffy T.S..  2006.  "PDF iconEquation 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., Shieh S.R. and Duffy T.S. "PDF iconHigh-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., Duffy T.S. and Burns P.C..  2006.  "PDF iconSingle-crystal elastic properties of alunite, KAl3 (SO4)2(OH)6." Physics and Chemistry of Minerals. 33:567-573 (2006).

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

He D. and Duffy T.S.  2006.  "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., Kiefer B., Shen G., Prakapenka V.B., Cava R.J. and Duffy T.S.  "PDF iconStability and equation of state of the post-perovskite phase in MgGeO3 to 2 Mbar." Geophysical Research Letters. 33 (2006).

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

Shieh S.R., Duffy T.S., Kubo A., Shen G., Prakapenka V.B., Sata N., Hirose K. and Ohishi Y.  "PDF iconEquation of state of the postperovskite 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., Kubo A., Duffy T.S., Prakapenka V.B. and Shen G.  "PDF iconHigh-pressure phases in SnO2 to 117 GPaPhys. Rev. B 73 (2006).



Speziale S., Jiang F. and Duffy T.S. "PDF iconCompositional 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 Duffy T.S. "PDF iconFinite element simulations of the laser-heated diamond-anvil cell." J. Appl. Phys. 97:114902 (2005).

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

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

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

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



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

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

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

Duffy T.S. 2004.  "PDF iconDeeper understanding." Nature. 430:409-410 (2004).

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

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

He D., Shieh S.R. and Duffy T.S. "PDF iconStrength 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., Hobart K.D., Kub F.J., Shieh S.R., Duffy T.S. and Sturm J.C.  "PDF iconHigh-germanium-content SiGe islands formed on compliant oxide by SiGe oxidation." Appl. Phys. Lett. 84:3624 (2004).

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



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

Kavner A. and Duffy T.S. "PDF iconElasticity and rheology of platinum under high pressure and nonhydrostatic stress." Phys. Rev. B 68 (2003).

Speziale S., Jiang F., Caylor C.L., Kriminski S., Zha C.-S., Thorne R.E. and Duffy T.S. "PDF iconSound Velocity and Elasticity of Tetragonal Lysozyme Crystals by Brillouin Spectroscopy." Biophysical Journal 85 (2003): 3202-3213  (2003).

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



Shim S.-H., Duffy T.S. and Takemura K. "PDF iconEquation 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 (2002): 729-739.

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

Shieh S.R. and Duffy T.S. "PDF iconRaman spectroscopy of Co(OH2) at high pressures: Implications for amorphization and hydrogen repulsion." Phys. Rev. B 66 (2002).

Shim S.-H. and Duffy T.S. "PDF iconRaman spectroscopy of Fe2O3 to 62 GPa." American Mineralogist 87 (2002): 318-326.

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

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

Shieh S.R., Duffy T.S. and Li B. "PDF iconStrength and Elasticity of SiO2 across the Stishovite – CaCl2-type Structural Phase Boundary." Phys. Rev. Lett. 89 (2002).

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



Kavner A., Duffy T.S., and Shen G. "PDF iconPhase 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., Duffy T.S. and Shen G. "PDF iconThe post-spinel transformation in Mg2SiO4 and its relation to the 660-km seismic discontinuity." Nature 411 (2001): 571-574. (2001).

Kavner A. and Duffy T.S. "PDF iconPressure–volume–temperature paths in the laser-heated diamond anvil cell." J. Appl. Phys. 89:1907 (2001).

Speziale S., Zha C.-S., Duffy T.S., Hemley R.J. and Mao H.-K. "PDF iconQuasi-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., Duffy T.S. and Shen G. "PDF iconStability and Structure of MgSiO3 Perovskite to 2300-Kilometer Depth in Earth's Mantle." Science 293:2437-2440 (2001).

Kavner A. and Duffy T.S. "PDF iconStrength and elasticity of ringwoodite at upper mantle pressures." Geophys. Res. Lett. 28:2691-2694 (2001).

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



Shim S.-H. and Duffy T.S. "PDF iconConstraints on the P-V-T equation of state of MgSiO3 perovskite." American Mineralogist 85:354-363 (2000).

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

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



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



Zha C.-S., Duffy T.S., Downs R.T., Mao H.-K. and Hemley R.J. "PDF iconBrillouin 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., Mao H.-K., Hemley R.J., Duffy T.S. and Rivers M.L. "PDF iconMelting and crystal structure of iron at high pressures and temperatures." Geophysical Research Letters 25:373-376 (1998).

Rivers M. L., Duffy T. S., Wang Y.,  Eng P. J., Sutton S. R. and Shen G. "PDF iconA 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 Wang Y. "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., Shen G., Hemley R.J. and Duffy T.S. "PDF iconX Ray Diffraction with a Double Hot-Plate Laser-Heated Diamond Cell." 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., Duffy T., Wang Y., Rivers M. and Sutton S.  1998.  PDF iconStudies on materials under ultrahigh P-T at the advanced photon source. Materials Research Society Symposium - Proceedings. 499:283-288  (1998).



Duffy T.S. and Ahrens T.J. "PDF iconDynamic 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. "PDF iconSingle-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).



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

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



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

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

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

Duffy T.S., Hemley R.J. and Mao H.-K. "PDF iconEquation of State and Shear Strength at Multimegabar Pressures: Magnesium Oxide to 227 GPa." Phys. Rev. Lett. 74:1371-1374 (1995).

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

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

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

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

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



Zha C.-S., Hemley R.J., Mao H.-K., Duffy T.S. and Meade C. "PDF iconAcoustic velocities and refractive index of SiO 2 glass to 57.5 GPa by Brillouin scattering." Phys. Rev. B 50:13105-13112  (1994).

Duffy T.S. and Ahrens T.J. "PDF iconDynamic response of molybdenum shock compressed at 1400 °C." Journal of Applied Physics 76 (1994).

Duffy T.S., Vos W.L., Zha C.-S., Hemley R.J. and Mao H.-K. "PDF iconSound Velocities in Dense Hydrogen and the Interior of Jupiter." Science 263:1590-1593   (1994).

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



Zha C.-S., Duffy T.S., Mao H.-K. and Hemley R.J. "PDF iconElasticity 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 Ahrens T.J. "PDF iconThermal expansion of mantle and core materials at very high pressures." Geophysical Research Letters 20 (1993): 1103-1106 (1993).



Duffy, T. S., and T. J. Ahrens. "PDF iconHugoniot 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. "PDF iconLateral 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. "PDF iconSound velocities at high pressure and temperature and their geophysical implications." J. Geophys. Res. 97:4503 (1992).



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

Tyburczy, J. A., T. S. Duffy, T. J. Ahrens, and M. A. Lange. "PDF iconShock 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).



Duffy, T. S. and Anderson, D. L. "PDF iconSeismic velocities in mantle minerals and the mineralogy of the upper mantle." J. Geophys. Res. 94:1895 (1989).



Duffy, T. S. and Vaughan, M. T. "PDF iconElasticity of enstatite and its relationship to crystal structure." J. Geophys. Res. 93:383 (1988).