Resonant two-magnon Raman scattering in cuprate antiferromagnetic insulators

被引：92

作者：

Blumberg, G

Abbamonte, P

Klein, MV

Lee, WC

Ginsberg, DM

Miller, LL

Zibold, A

机构：

[1] UNIV ILLINOIS,DEPT PHYS,URBANA,IL 61801

[2] INST CHEM PHYS & BIOPHYS,EE-0001 TALLINN,ESTONIA

[3] IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011

[4] UNIV FLORIDA,DEPT PHYS,GAINESVILLE,FL 32611

来源：

PHYSICAL REVIEW B | 1996年 / 53卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.53.R11930

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present results of low-temperature two-magnon resonance Raman excitation profile measurements for single-layer Sr2CuO2Cl2 and bilayer YBa2Cu3O6+delta antiferromagnets over the excitation region from 1.65 to 3.05 eV. These data reveal composite structure of the two-magnon line shape and strong nonmonotic dependence of the scattering intensity on excitation energy. We analyze these data using the triple resonance theory of Chubukov and Frenkel [Phys. Rev. Lett. 74, 3057 (1995)] and deduce information about magnetic interaction and band parameters in these materials.

引用

页码：11930 / 11933

页数：4

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