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

  • Shieh, S.R., W.-P. Hsieh, Y.-C. Tsao, Thermal conductivity of hydrogen at high pressure and high temperature: Implications to giant planets, Geophys. Res. Lett. 50, e2023GL103994, 2023. https://doi.org/10.1029/2023GL103994
  • Bédard, J.H., Dewing, K., Grasby, S. E., Nabelek, P., Heimdal, T., Yakymchuk, C., Shieh, S.R., Rumney, J., Deegan, F.M., Troll, V., Basaltic sills emplaced into organic-rich sedimentary rocks: consequences for organic matter maturation and Cretaceous paleo-climate, GSA Bulletin 2023. https://doi.org/10.1130/B36982.1
  • Dhami, N. S., V. Baledent, O. Bednarchuk, D. Kaczorowski, S. R. Shieh, J. M. Ablett, J.-P. Rueff, J.-P. Itié, C. M. N. Kumar, and Y. Utsumi Boucher, Pressure evolution of electronic and crystal structure of non-centrosymmetric EuCoGe3, Phys. Rev. B. 107, 155119, 2023. https://doi.org/10.1103/PhysRevB.107.155119
  • Shieh, S.R. and N. Hiraoka, High-pressure X-ray Raman Study of CO2-V and N2, SPring-8/SACLA Research Report 10, No. 4, 342-344, 2022. https://doi.org/10.18957/rr.10.4.342
  • Zhai, S., B. Dai, W, Xue, J.D. Rumney, H. Wang, S.R. Shieh, Xiang Wu, Pressure- and temperature-dependent Raman spectra of Ca2Fe2O5 oxygen defect perovskite, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 279: 121436, 2022.
  • Shieh, S.R., W.-P. Hsieh, C. Crisostomo, H. Hsu, Low thermal conductivity of carbon dioxide at high pressure: Implications for icy planetary interiors, J. Geophys. Res. Planets 127, e2022JE007180, 2022. https://doi.org/10.1029/2022JE007180
  • Shieh, S.R., N.T. Khan*, Z. Mi, M. van Zyl*, R.D. Rodriguez*, C. Prescher and V. B. Prakapenka, Equation of state of Mg2Cr2O5 phase and CaTi2O4-type phase of magnesiochromite and chromite. Am. Mineral. 107, 453-459, 2022. doi.org/10.2138/am-2021-7853
  • Lin, C.-M., C.-P. Wang*, S. R. Shieh, T. Huang, D. Zhang, J.-W. Yeh, and J.-Y. Juang, The role of intrinsic stacking fault in facilitating the pressure-induced phase transition in CoCrFeMnNi high entropy alloys. Materials Chemistry and Physics 275, 125273, 2022. https://doi.org/10.1016/j.matchemphys.2021.125273
  • Xie, T.*, G.R. Osinski, S.R. Shieh, Raman study of shock effects in lunar anorthite from the Apollo missions. Meteorit. Planet. Sci. 1-19, 2021. doi.org/10.1111/maps.13728
  • Utsumi, Y., I. Batisti, V. Baledent, S. R. Shieh, N. S. Dhami, O. Bednarchuk, D. Kaczorowski, J. M. Ablett, and J.-P. Rueff, Pressure evolution of the electronic structure of non-centrosymmetric EuRhGe3, Electronic Structure 3, 034002, 2021. doi.org/10.1088/2516-1075/ac0c27
  • Ablett, J.M., S.R. Shieh, V. Balédent, J.C. Woicik, E. Cockayne, and E.L. Shirley, X-ray spectroscopic and first-principles investigation of lead tungstate under pressure, Phys. Rev. B 104, 054119, 2021. doi.org/10.1103/PhysRevB.104.054119
  • Zhang, B.*, Y. Lin, D.E. Moser, J. Zhang, S.R. Shieh, A. Bouvier, Timing of the Lunar Mg-suite Magmatism Constrained by SIMS U-Pb Dating of Apollo Norite 78238, Earth Planet. Sci. Lett. 569, 117046, 2021. doi.org/10.1016/j.epsl.2021.117046
  • Zhang, B.*, Y. Lin, D.E. Moser, J. Zhang, S.R. Shieh, A. Bouvier, Radiogenic Pb remobilization induced by shock-related deformation in early lunar zircons of the Apollo 17 Civet Cat norite, Geochim Cosmochim Acta 302, 175-192, 2021. doi.org/10.1016/j.gca.2021.03.012
  • Xie, T.*, G.R. Osinski, S.R. Shieh, Raman study of shock features in plagioclase feldspar from the Mistastin Lake impact structure, Canada. Meteorit. Planet. Sci. 1-20, 2020. doi.org/10.1111/maps.13523
  • Wang, C.-P.*, S.R. Shieh, A.C. Withers, X. Liu, D. Zhang, S.N. Tkachev, A.-E. Djirar,* T. Xie,* and J. D. Rumney,* Raman and X-ray diffraction study on pressure-induced phase transition of synthetic Mg2TiO4. Sci. Rep. 10, 6278, 2020. doi.org/10.1038/s41598-020-63202-5 



  • Earth Sciences 2230: Introduction to Geochemistry
  • Earth Sciences 2240: Catastrophic Events in Earth history
  • Earth Sciences 4424: Advanced Mineral Physics
  • Geophysics 9507: Aspect of High Pressure Geophysics

Future Students

MSc and PhD opportunities are available. Contact Sean Shieh (sshieh@uwo.ca) for more information.