ZONE-BOUNDARY-PHONON RAMAN-SCATTERING IN VI2 DUE TO MODULATION OF EXCHANGE INTERACTION

被引：24

作者：

GUNTHERODT, G

BAUHOFER, W

BENEDEK, G

机构：

[1] Max-Planck-Institut fur Festkörperforschung, Stuttgart

[2] Gruppo Nazionale di Struttura Della Materia del Consiglio Nazionale Delle Ricerche, Istituto di Fisica Dell' Università, Milano

来源：

PHYSICAL REVIEW LETTERS | 1979年 / 43卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.43.1427

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Three new Raman lines appearing below the antiferromagnetic ordering temperature of VI2 are attributed to zone-boundary-phonon Raman scattering induced by the elastic (Bragg") magnetic scattering from the spin superstructure. The spin-dependent electron-phonon coupling is explained in terms of a modulation of the exchange interactions by selected zone-boundary phonons. © 1979 The American Physical Society."

引用

页码：1427 / 1430

页数：4

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