Unusual temperature dependence of the magnetic moment in URu2Si2

被引：7

作者：

Fak, B. ^{[1
]}

Vettier, C. ^{[2
]}

Flouquet, J. ^{[1
]}

Lejay, P. ^{[3
]}

Mignot, J. M. ^{[4
]}

机构：

[1] CEA, Dept Rech Fondamentale Matiere Condensee, F-38054 Grenoble 9, France

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

[3] CNRS, Ctr Rech Tres Basses Temp, F-38042 Grenoble 9, France

[4] CE Saclay, Lab Leon Brillouin, F-91191 Gif Sur Yvette, France

来源：

PHYSICA B-CONDENSED MATTER | 1995年 / 206卷

关键词：

D O I：

10.1016/0921-4526(94)00476-C

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The influence of the sample quality on the magnetic properties of the heavy-fermion superconductor URu2Si2 has been studied by elastic neutron scattering. Two single crystals prepared under identical conditions received different heat treatments. The as-grown crystal shows an unusual temperature dependence of the magnetic Bragg peak intensity. The annealed sample behaves normally. The low-temperature magnetic moment is identical for the two samples, showing that the small moment of 0.023(3)mu(B) is intrinsic. By varying the instrumental resolution, we show that the ordered moment as well as the limited correlation length (200-400 angstrom) are of static origin. The finite correlation length appears related to defects.

引用

页码：415 / 417

页数：3

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