Raman and x-ray diffraction investigations on BaMoO4 under high pressures

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

References in corpus (2)

• High-pressure structural study of the scheelite tungstates CaWO4 and SrWO4
• High Pressure phase transitions in BaWO4

Cited by in corpus (3)

• Pressure effects on the structural and electronic properties of ABX4 scintillating crystals
• High-pressure x-ray diffraction study of SrMoO4 and pressure-induced structural changes
• Effects of high pressure on the optical absorption spectrum of scintillating PbWO4 crystals