{"title":"四方旋向晶体拉曼光谱中e -重偶态的角行为","authors":"S. G. Garasevich, A. Slobodyanyuk","doi":"10.1117/12.486677","DOIUrl":null,"url":null,"abstract":"Angular dependencies of the Raman modes frequency on direciton of phonon wave vector q in tetragonal gyrotropic crystals TeO2, ZnP2, and CdP2 were investigated and compared. We observed two completely different types of angular behavior of E-doublets splitting in depending on relative contributions of spatial dispersion and long-range Coulomb interaction. The explanation of apparent anomalous dependence of E-doublet 122 cm-1 splitting on q in TeO2 is proposed.","PeriodicalId":205850,"journal":{"name":"International School on Spectroscopy of Molecules and Crystals","volume":"14 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2002-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Angular behavior of E-doublets in Raman spectra of tetragonal gyrotropic crystals\",\"authors\":\"S. G. Garasevich, A. Slobodyanyuk\",\"doi\":\"10.1117/12.486677\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Angular dependencies of the Raman modes frequency on direciton of phonon wave vector q in tetragonal gyrotropic crystals TeO2, ZnP2, and CdP2 were investigated and compared. We observed two completely different types of angular behavior of E-doublets splitting in depending on relative contributions of spatial dispersion and long-range Coulomb interaction. The explanation of apparent anomalous dependence of E-doublet 122 cm-1 splitting on q in TeO2 is proposed.\",\"PeriodicalId\":205850,\"journal\":{\"name\":\"International School on Spectroscopy of Molecules and Crystals\",\"volume\":\"14 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2002-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International School on Spectroscopy of Molecules and Crystals\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1117/12.486677\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International School on Spectroscopy of Molecules and Crystals","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1117/12.486677","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Angular behavior of E-doublets in Raman spectra of tetragonal gyrotropic crystals
Angular dependencies of the Raman modes frequency on direciton of phonon wave vector q in tetragonal gyrotropic crystals TeO2, ZnP2, and CdP2 were investigated and compared. We observed two completely different types of angular behavior of E-doublets splitting in depending on relative contributions of spatial dispersion and long-range Coulomb interaction. The explanation of apparent anomalous dependence of E-doublet 122 cm-1 splitting on q in TeO2 is proposed.
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