Raman and x-ray diffraction investigations on BaMoO4 under high pressures
arXiv:cond-mat/0505443 · doi:10.1088/0953-8984/18/16/002
Abstract
X-ray diffraction and Raman scattering studies on scheelite structured barium molybdate show that, at 5.8 GPa, it undergoes a first order phase transition to fergusonite structure (I2/a, Z=4), asobserved in iso-structural barium tungstate.At still higher pressures, barium molybdate transform to another phase between 7.2-9.5 GPa. On release of pressure from 15.8 GPa, the initial phase is recovered implying that the observed structural modifications are reversible.
23 pages,9 figures and two tables