My research interest is crystallography regarding the structure-property relationship. Since pressure is a well-known parameter to change the bond distance and band structure simultaneously I am focused on phase transitions of various systems, d- and f-metals (non-classified subjects) and their compounds, and molecular systems (components of planetary ices). Understanding the mechanism among the series of structures in transitions is my primary goal. So far I have studied synchrotron X-ray and neutron powder diffraction. In the future I plan to pursue single crystal diffraction studies.
I also use Raman spectroscopy as a complimentary tool in the laboratory. To perform high temperature research, laser heating and resistive heating are also adopted in collaboration with my research group members.
- C. S. Yoo, B. Maddox, J. -H. P. Klepeis, V. Iota, W. Evans,
A. McMahan, M. Hu, P. Chow, M. Somayazulu, D. Hausermann, R.
T. Scalettar, and W. E. Pickett, "First-order Isostructural
Mott transition in highly compressed MnO",
Phys. Rev. Lett.94(11), 115502 (2005) [pdf]
- V. Iota, J.-H. Park, and C.S. Yoo, (2003) "Phase Diagram
of Nitrous Oxide: Analogy with Carbon Dioxide",
Phys. Rev. B69(6), 064106 (2004) [pdf]
J.-H. Park, C.S. Yoo, V. Iota, H. Cynn, M.F. Nicol and T. LeBihan, "Crystal Structure of Bent Carbon Dioxide Phase IV",
Physical Review B68 (1), 014107 (2003) [pdf]