Decay mechanism of optical phonons in γ-CuI
Temperature-dependent frequencies and linewidths of transverse-optical (TO) and longitudinal-optical (LO) in γ–CuI were fitted according to the anharmonic phonon coupling theory. The results indicate that the asymmetric three-phonon and symmetric four-phonon processes are both responsible for the de...
Main Authors: | Haiying He, Zhaojun Zhang |
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Format: | Article |
Language: | English |
Published: |
AIP Publishing LLC
2019-05-01
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Series: | AIP Advances |
Online Access: | http://dx.doi.org/10.1063/1.5087172 |
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