OPTICAL PHONONS IN T-STAR-STRUCTURE ND2-X-YCEXSRYCUO4

被引：10

作者：

LITVINCHUK, AP ^{[1
]}

THOMSEN, C ^{[1
]}

MURUGARAJ, P ^{[1
]}

HEYEN, ET ^{[1
]}

CARDONA, M ^{[1
]}

机构：

[1] CSIR,DIV CERAM REG RES LAB,TRIVANDRUM 695019,KERALA,INDIA

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.43.13060

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report Raman and far-infrared spectra of a ceramic compound with T* structure. We perform an eigenmode analysis and show the displacement patterns of all modes. As T* may be looked upon as a hybridization of the T and T' structures, it has twice as many modes as either T or T'. This enrichment in the spectra is observed experimentally. The similarity in the structures between T, T', and YBa2Cu3O7 and T* is the basis for our mode assignment.

引用

页码：13060 / 13065

页数：6

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