CU-O NETWORK DEPENDENCE OF OPTICAL CHARGE-TRANSFER GAPS AND SPIN-PAIR EXCITATIONS IN SINGLE-CUO2-LAYER COMPOUNDS

被引：245

作者：

TOKURA, Y ^{[1
]}

KOSHIHARA, S ^{[1
]}

ARIMA, T ^{[1
]}

TAKAGI, H ^{[1
]}

ISHIBASHI, S ^{[1
]}

IDO, T ^{[1
]}

UCHIDA, S ^{[1
]}

机构：

[1] UNIV TOKYO,ENGN RES INST,TOKYO 113,JAPAN

来源：

PHYSICAL REVIEW B | 1990年 / 41卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.41.11657

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Spectra of optical conductivity and magnon Raman scattering have been investigated in single crystals of a parent family of cuprate superconductors with various types of Cu-O single-layer networks. The analysis of the spectra shows the systematic dependence of the charge-transfer gaps and covalent character of Cu-O bonds on the pattern of the Cu-O network, while the spin-exchange energy is rather convergent for all the single-CuO2-sheet compounds. © 1990 The American Physical Society.

引用

页码：11657 / 11660

页数：4

共 21 条

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