American Mineralogist 106(7) 1105-1112 2021年7月 [査読有り]
Abstract
Three single crystals of CaTi2O4 (CT)-type, CaFe2O4 (CF)-type, and new low-density CaFe2O4 (LD-CF) related MgAl2O4 were synthesized at 27 GPa and 2500 °C and also CT-type MgAl2O4 at 45 GPa and 1727 °C using conventional and advanced mul...
J-G Cheng   T. Ishii   H. Kojitani   K. Matsubayashi   A. Matsuo   X. Li   Y. Shirako   J-S Zhou   J. B. Goodenough   C. Q. Jin   M. Akaogi   Y. Uwatoko   
PHYSICAL REVIEW B 88(20) 205114(1-7) 2013年11月
BaIrO3 adopts the 9R polytype structure if it is synthesized at ambient pressure. High-pressure and high-temperature treatments up to 10 GPa have led to other 5H and 6H polytype phases, which are quenchable to the ambient condition. However, the s...
Linlin Chang   Xi Liu   Hong Liu   Hiroshi Kojitani   Sicheng Wang   
PHYSICS AND CHEMISTRY OF MINERALS 40(7) 563-574 2013年7月
The phonon dispersions and vibrational density of state (VDoS) of the K2SiSi3O9-wadeite (Wd) have been calculated by the first-principles method using density functional perturbation theory. The vibrational frequencies at the Brillouin zone center...
Linlin Chang   Xi Liu   Hong Liu   Hiroshi Kojitani   Sicheng Wang   
PHYSICS AND CHEMISTRY OF MINERALS 40(7) 563-574 2013年7月
The phonon dispersions and vibrational density of state (VDoS) of the K2SiSi3O9-wadeite (Wd) have been calculated by the first-principles method using density functional perturbation theory. The vibrational frequencies at the Brillouin zone center...