OPTICAL-ABSORPTION OF THE LAYER ANTI-FERROMAGNET RB2MNCL4

被引：9

作者：

POPOV, EA

KOTLYARSKII, MM

机构：

[1] L. V. Kirenskii Institute of Physics, Academy of Sciences of the Ussr, Siberian Branch

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1979年 / 96卷 / 01期

关键词：

D O I：

10.1002/pssb.2220960114

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The optical absorption spectrum of the quasi‐two‐dimensional (2D) antiferromagnet Rb2MnCl4 is investigated in the region of the 6A1g → 4T2g(4D) transition (D group bands). It is found that short‐range magnetic order strongly influences the absorption spectrum at temperatures T > TN. The spin‐flop phase transition is observed in a magnetic field of 56 kOe. Investigation of the Zeeman effect allows to conclude the spectrum in this region to consist of magnon and magnon–phonon sidebands of three different purely excitonic lines. Copyright © 1979 WILEY‐VCH Verlag GmbH & Co. KGaA

引用

页码：163 / 167

页数：5

共 17 条

[1]

BARYAKHTAR VG, 1972, ZH EKSP TEOR FIZ+, V62, P2233

[2]

BELYAEVA AI, 1976, IFSD48F PREPR

[3] LATTICE-DYNAMICS IN PEROVSKITE-TYPE LAYER STRUCTURES .1. FIR AND RAMAN STUDIES ON K2MNF4 AND RB2MNCL4 [J].