First observation of nonreciprocal x-ray gyrotropy

被引：61

作者：

Goulon, J

Rogalev, A

Goulon-Ginet, C

Benayoun, G

Paolasini, L

Brouder, C

Malgrange, C

Metcalf, PA

机构：

[1] European Synchrotron Radiat Facil, F-38043 Grenoble, France

[2] Univ Paris 06, Lab Mineral Cristallog, CNRS, F-75252 Paris 05, France

[3] Univ Paris 07, Lab Mineral Cristallog, CNRS, F-75252 Paris 05, France

[4] Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.85.4385

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first observation of a nonreciprocal x-ray linear dichroism caused by the time-reversal odd, real part zeta of the complex gyrotropy tensor zeta* which is dominated by electric dipole-electric quadrupole E1E2 interference terms. A nonreciprocal transverse anisotropy was observed in the low temperature insulating phase of a Cr doped V2O3 Mott crystal when a single antiferromagnetic domain was grown by magnetoelectric annealing along the hexagonal c axis. This new element (edge) specific spectroscopy could nicely complement x-ray magnetic circular dichroism which is silent for antiferromagnetic materials.

引用

页码：4385 / 4388

页数：4

共 38 条

[1] X-ray natural circular dichroism [J].