DAVYDOV SPLITTING AND RIGID-LAYER MODES IN INS CRYSTAL

Date

1982-01-01

Author

Hasanlı, Nızamı
FARADZHEV, FE
RAGIMOV, AS
BURLAKOV, VM
GONCHAROV, AF
VINOGRADOV, EA

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Polarized infrared reflection spectra of InS layer crystal have been measured. Both components of the Davydov doublets caused by the splitting of intralayer vibrations due to the interlayer interactions are active in i.r. spectra. Doublet frequencies have been used to calculate the rigid-layer mode frequencies which are correlated with the experimental ones. It has been established that in InS crystal the frequencies of rigid-layer modes are much higher than those of ordinary layer crystals. Atomic displacements have been found at i.r.-active normal modes.

URI

https://hdl.handle.net/11511/42867

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Department of Physics, Article