Dr. Sean Shieh

Mineral Physics

Sean Shieh

Ph.D. University of Hawaii, 1998
Office: BGS 1066
Lab: BGS 0135
Phone: (519) 850-2467
Fax: (519) 661-3198
Email: sshieh@uwo.ca

Research Interests

Mineral physics; Material study under extreme P-T conditions; Elasticity, Structures and dynamics of the Earth's and planetary interiors; Characterization of materials (e.g. equation of state, phase transition, elasticity, strength, rheology) using synchrotron X-ray, Raman and IR spectroscopy; Exploration of novel and super-hard materials; Material-fluid interaction; high-pressure and high-temperature experiment using a diamond anvil cell.

Selected Publications

  • Morozova, I., S.R. Shieh, D. Moser and J. Hanchar, Strength and texture of zircon under high pressure. Microstructural Geochronology, 2017
  • Zhai, S., Y. Yin, S.R. Shieh, Y. Chang, T. Xie, W. Xue, Raman spectroscopic study of MnAl2O4 galaxite at various pressures and temperatures. Phys. Chem. Mineral. 44, 163-170, 2017
  • Lv, M., X. Liu, S.R. Shieh, T. Xie, C. Prescher, V.B. Prakapenka, Equation of state of synthetic qandilite Mg2TiO4 at ambient temperature, Phys. Chem. Mineral. 43, 301-306, 2016.
  • Ablett, J.M., J.-P. Rueff, S.R. Shieh, C.C. Kao and S. Wang, Possible evidence for high-pressure induced charge transfer in thallium rhenium oxide at room temperature, Phys. Rev. B92, 014113, 2015.
  • Zhang J.S., S.R. Shieh, J.D. Bass, P. Dera and V. Prakapenka, High-pressure single-crystal elasticity study of CO2 across phase I-III transition, Appl. Phys. Lett. 104, 141901, 2014.
  • Shieh, S.R. I. Jarrige, M. Wu, N. Hiraoka, J.S. Tse, Z. Mi, L. Kaci, J.Z. Jiang and Y.Q. Cai, Electronic Structures of carbon dioxide under pressure and insights into the molecular to nonmolecular transition, Proc. Natl. Acad. Sci. USA 110, 18402-18406, 2013.
  • Dorfman, S.M., S.R. Shieh, Y. Meng, V.B. Prakapenka, and T.S. Duffy, Synthesis and equation of state of perovskite in the (Mg,Fe)3Al2Si3O12 system to 177 GPa, Earth Planet. Sci. Lett. 357 194-202, 2012.
  • Yong, W., S. Botis, S.R. Shieh, W. Shi and A.C. Withers, Pressure-induced phase transition study of magnesiochromite (MgCr2O4) by Raman spectroscopy and X-ray diffraction, Phys. Earth Plane. Inter. 196-197, 75-82, 2012.
  • Shieh, S.R., S.M. Dorfman, A. Kubo, V.B. Prakapenka, T.S. Duffy, Synthesis and Equation of State of Post-Perovskites in the (Mg,Fe)3Al2Si3O12 system, Earth Planet. Sci. Lett. 312, 422-428, 2011.
  • 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, Phys. Earth Plane. Inter. 175, 106-114, 2009.
  • Shieh, S.R., T.S. Duffy, A. Kubo, G. Shen, V.B. Prakapenka, N. Sata., K. Hirose, Y. Ohishi, Equation of state of the post-perovskite phase synthesized from a natural (Mg,Fe)SiO3 orthopyroxene, Proc. Natl. Acad. Sci. USA 103, 3039-3043, 2006.
  • Shieh, S.R., A. Kubo, T.S. Duffy, V.B. Prakapenka, G. Shen, High-pressure phases in SnO2 to 117 GPa, Phys. Rev. B 73, 014105, 2006.
  • Shieh, S.R., T.S. Duffy, G. Shen, In-situ x-ray diffraction study of SiO2 at deep lower mantle conditions, Earth Planet. Sci. Lett. 235, 273-282, 2005.
  • Shieh, S.R., T.S. Duffy, G. Shen, Elasticity and strength of calcium silicate perovskite at lower mantle pressures, Phys. Earth Plane. Inter. 143-144, 93-105, 2004.
  • Shieh, S.R. T.S. Duffy, B. Li, Strength and elasticity of SiO2 across the stishovite-CaCl2–type phase, Phys. Rev. Lett. 89, 255507, 2002.


  • Earth Sciences 2230: Introduction to Geochemistry
  • Earth Sciences 2240: Catastrophic Events in Earth history

Current Students

  • Tianqi Xie, PhD Geophysics Candidate (Co-Supervisor)
  • Ching Pao Wang, PhD Geophysics Candidate (Co-Supervisor)
  • Abd-Erraouf Djirar, MSc Geophysics Candidate
  • Bidong Zhang, PhD Geology and Planetary Science Candidate (Co-Supervisor)
  • Giancarlo Jones, PhD Geology Candidate (Co-Supervisor)
  • Ricardo Rodriguez, MSc Geophysics Candidate

Future Students

If you are interested in Mineral Physics, synchrotron X-ray, Raman and IR, and materials study under extreme P-T conditions, please contact me (sshieh@uwo.ca). M.Sc. and Ph.D. students are welcome.