Magneto-optical study of the spin-polarized electronic states in multiferroic TbMnO3

被引：23

作者：

Bastjan, M. ^{[1
]}

Singer, S. G. ^{[1
]}

Neuber, G. ^{[1
]}

Eller, S. ^{[1
]}

Aliouane, N. ^{[2
]}

Argyriou, D. N. ^{[2
]}

Cooper, S. L. ^{[3
,4
]}

Rubhausen, M. ^{[1
]}

机构：

[1] Univ Hamburg, Inst Angew Phys, D-20355 Hamburg, Germany

[2] Hahn Meitner Inst Berlin GmbH, D-14109 Berlin, Germany

[3] Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA

[4] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.77.193105

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic and electronic properties of multiferroic TbMnO3 in the paramagnetic, antiferromagnetic, sinusoidal, and spiral-spin phases were studied by spectral generalized magneto-optical ellipsometry. The measurements show a strong anisotropy of the dielectric tensor. A redistribution of spectral weight was observed in the diagonal components of the dielectric tensor for the temperature range from 110 to T-N = 46 K. In the off-diagonal elements, spectral generalized magneto-optical ellipsometry shows sensitivity to the antiferromagnetic and ferroelectric phase transitions at T-N = 46 K and T-F = 29 K, respectively, and a persistent signal up to 6T(N).

引用

页数：3

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