X-Ray Diffuse Scattering Due to Orientation-Phonon Coupling in Cubic NaClO₄

抄録

An intensity formula for X-ray diffuse scattering due to an orientation-phonon coupling in multi-orientation system is obtained by extending Naya’s theory in the random phase approximation (RPA). By the use of this formula, diffuse maximum observed in cubic NaClO₄ is analysed and the mechanism of cubic-orthorhombic transition in NaClO₄ is clarified.