High-energy magnetic excitations of URu2Si2 -: art. no. 094502

被引：21

作者：

Park, JG ^{[1
]}

McEwen, KA

Bull, MJ

机构：

[1] Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea

[2] Sungkyunkwan Univ, Inst Basic Sci, Suwon 440746, South Korea

[3] Seoul Natl Univ, Ctr Strongly Correlated Mat Res, Seoul 151742, South Korea

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

[5] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England

来源：

PHYSICAL REVIEW B | 2002年 / 66卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.66.094502

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have investigated the magnetic excitations of URu2Si2 up to 800 meV using high energy inelastic neutron scattering. There is clear evidence of magnetic scattering in the energy range up to 200 meV. This scattering can be fitted to four broad peaks which we attribute to heavily damped crystal field excitations. We also observed the U4+ H-3(4)-->F-3(2) intermultiplet transition at 363 meV, which is a clear evidence of U4+ of URu2Si2. We discuss our results with special attention to theoretical models proposed to explain the single ion physics of URu2Si2, in particular the antiferromagnetic transition.

引用

页码：945021 / 945025

页数：5

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