Abstract A Raman scattering study in the mixed crystal system [(NH 4 ) 1− x K x ] 2 CuCl 4 · 2 H 2 O is reported. It is found that this system has a strong Raman‐active B 1g mode, which dominantly involves NH 4 /K translations and shows a two‐mode behaviour. This behaviour is examined on the basis of a variant of the REI model. Frequency variations with concentration, exhibited by other modes are also studied.
Yasuhiro OnoTomoyuki HikitaT. Ikeda
V. Bangera KasthuriP. Mohan Rao
Ping HeKiyoshi DeguchiMasaki HirokaneE. Nakamura
Α. V. BelushkinC.J. CarlileL. A. Shuvalov