29Si NMR study of URu2Si2 under pressure

被引：2

作者：

Matsuda, K ^{[1
]}

Kohori, Y

Kohara, T

Amitsuka, H

Matsumoto, T

机构：

[1] Himeji Inst Technol, Dept Mat Sci, Kamigori, Hyogo 6781297, Japan

[2] Hokkaido Univ, Grad Sch Sci, Div Phys, Sapporo, Hokkaido 0600810, Japan

[3] Natl Res Inst Met, Tsukuba, Ibaraki 3050047, Japan

来源：

PHYSICA B-CONDENSED MATTER | 2002年 / 312卷

关键词：

URu2Si2; antiferromagnetism; NMR;

D O I：

10.1016/S0921-4526(01)01177-2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Si-29 NMR has been performed under pressure to study the antiferromagnetic (AF) ordering with a "tiny staggered moment" below T-o = 17.5 K in URu2Si2. In the pressure range between 3.0 and 8.3 kbar, we have observed the Si-29 NMR lines arising from the AF- and the paramagnetic-regions in the sample. This gives definite evidence for spatially inhomogeneous development of AF ordering below T-o. The AF volume fraction is enhanced by applied pressure, whereas the magnitude of internal field at Si-site in the AF region remains constant (910 Oe) up to 8.3 kbar. In the AF region, the ordered moment is about an order of magnitude larger than 0.031 mu(B)/U. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：504 / 505

页数：2

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