Large enhancement of x-ray magnetic scattering at the L edges of the 5d transition metal antiferromagnet K2ReCl6

被引：11

作者：

McMorrow, DF ^{[1
]}

Nagler, SE

McEwen, KA

Brown, SD

机构：

[1] Riso Natl Lab, Mat Res Dept, DK-4000 Roskilde, Denmark

[2] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

[3] UCL, Dept Phys & Astron, London WC1E 6BT, England

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

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2003年 / 15卷 / 02期

关键词：

D O I：

10.1088/0953-8984/15/2/108

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

yThe x-ray resonant scattering cross-section of K2ReCl6 has been studied for energies near the L edges of rhenium. Below the Neel temperature of T-N similar to 11 K, additional peaks appear when the photon energy is tuned to the L-II or L-III edges. The peaks are found to rotate the incident (linear) polarization, and have a Lorentzian lineshape in energy. The peaks are ascribed to resonant magnetic scattering, where a dipolar transition connects 2p-5d states. At resonance the scattering amplitude is of order similar tor(0) per atom, roughly two orders of magnitude greater than that of the bare magnetic scattering.

引用

页码：L59 / L66

页数：8

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