Abnormal Vibrations of Cd Atoms inZnxCd1−xTe

Combined proton-induced x-ray-emission and Rutherford-backscattering channeling measurements on CdTe and ${\mathrm{Zn}}_x{\mathrm{Cd}}_{1-x}\mathrm{Te}$ ($x=0.04,0.1,0.3$) crystals reveal a narrowing of the Cd-sublattice channeling pattern relative to that of Te for $x=0.1\mathrm{}$ which does not exist for the other $x$ materials. This observation is attributed to enhanced vibrations of Cd atoms caused by the bonding changes induced by the Zn.