Moderate to large magneto-optical signals in high Tc double perovskites

被引：86

作者：

Das, Hena ^{[1
]}

De Raychaudhury, Molly ^{[1
]}

Saha-Dasgupta, T. ^{[1
,2
]}

机构：

[1] SN Bose Natl Ctr Basic Sci, Dept Mat Sci, Kolkata 700098, India

[2] SN Bose Natl Ctr Basic Sci, Adv Mat Res Unit, Kolkata 700098, India

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 20期

关键词：

D O I：

10.1063/1.2936304

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using first-principles density functional calculations, we have computed the optical and magneto-optical properties of the Cr-based double perovskite compounds, Sr2CrB'O-6 with B'=W,Re,Os. Our computed magneto-optic spectra show substantially large Kerr rotations of about -2 degrees to -2.5 degrees for Sr2CrWO6 and Sr2CrReO6 and a moderately large Faraday rotation of about -0.25x10(6) deg/cm in insulating Sr2CrOsO6, indicating possible industrial applications. Our study should motivate experimental investigations in this yet to be explored area of Sr2CrB'O-6 compounds. (C) 2008 American Institute of Physics.

引用

页数：3