MAGNETOOPTIC FARADAY-EFFECT IN (LA1-XCAX)MNO3 FILMS

被引：65

作者：

LAWLER, JF

LUNNEY, JG

COEY, JMD

机构：

[1] Physics Department, Trinity College

来源：

APPLIED PHYSICS LETTERS | 1994年 / 65卷 / 23期

关键词：

D O I：

10.1063/1.112494

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Thin films of (La1-xCax)MnO3 prepared by laser ablation deposition are ferromagnetic when 0.2≤x≤0.5 with T c≊250 K. These films show strong Faraday rotation both in the vicinity of the 2p(O)→3d(Mn) charge-transfer absorption at approximately 3.0 eV (θF≳40 000°/cm), and in the vicinity of the 3d(t2g)→3d(eg) excitation at approximately 1.5 eV (θF≳10 000°/cm just below Tc). The films are moderately transparent, having values of 2θF/α of approximately 0.1 at 1.5 eV and 0.5 at 3.0 eV. © 1994 American Institute of Physics.

引用

页码：3017 / 3018

页数：2

共 13 条

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