X-Ray Study of Rb₂ZnBr₄ under High Pressure

Abstract

Pressure-temperature dependence of modulation wavenumber was measured by X-ray diffraction in the region of 295 ≤ T ≤ 400 K, 0 ≤ p ≤ 1.3 GPa. Contour map and phase diagram were drawn on p–T plane. Crystal structure of the high pressure phase with modulation wavenumber q=0 was analyzed using X-ray diffraction data at p \cong 1 GPa and T=295 K.