Resonant Raman scattering in the mixed crystals MgxCd1?xSe

Artamonov, V. V.; Valakh, M. Ya.; Litvinchuk, A. P.; Vitrikhovskii, N. I.

doi:10.1007/bf00618430

Cited by 1 publication

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“…For some compounds, such as Zn,Cdl -,S [2,3], In,Gal.,P [4], ZnTe,Sel-, [5], and especially Zn,Cdl-,Se [el, a more complicated behaviour in the frequency and intensity of long-wavelength phonon lines has been observed. The anomalous features frequently take place in the one-mode case.…”

Section: Introductionmentioning

confidence: 99%

Anharmonic Coupling of Phonon Modes in Mixed Zn_xCd_1−xSe Crystals

Valakh

Lisitsa

Pekar

et al. 1982

Physica Status Solidi (b)

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The vibrational properties of Zn,Cdl -,Se phonons are studied using Raman scattering. The change of the LO-phonon spectrum versus crystal composition is found to be of the one-mode type. The TO-phonon behaviour is much more complicated. It exhibits rather anomalous features in the line shape and TO-mode frequency versus crystal composition as well as temperature. The above phenomena are interpreted in terms of the anharmonic coupling between TO-mode and twophonon states. This coupling is well described by the theory developed. aKClIepHMeHTaJIbH0 HCCneAOBEiHbI ClIeKTpbl HOM6MHaQMOHHOrO paCCeRHMR MOHOKpMCTaJl-JIOB Zn,Cdl -,Se. &TIFi LO-@OHOHOB YCTaHOBJIeH O n H O M O~O B b l f i XapaKTep IlepeCTpO&U4 ClIeKTpa C COCTBBOM. AJIR TO-@OHOHOB KapTHHa M3MeHeHMR CIleXTpOB CyUeCTBeHHO 6onee CJIOWHaR. 06HapyHCeHHbIe OCO6eHHOCTH 3aBHCHMOCTM YaCTOTbI, MHTeHCMBHOCTH M (POPMbI IIOJIOCbI TO-(POHOHOB OT COCTaBa M TeMIlepaTypbI 06yCnOBJIeHbI aHraPMOHHYeCKHM B3aMMOAefiCTBMeM HX C ~BYX(POH0HHbIMH B036YXEAeHMRMH aKyCTMqeCIEMX (POHOHOB. Pa3-BMTaFI TeOpMR TaKOrO B3aKMOAefiCTBMR XOpOIUO OllHCbIBaeT BCe er0 KaYeCTBeHHbIe OCO-6eHHOCTH.

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Section: Introductionmentioning

confidence: 99%