Novel superconductivity in noncentrosymmetric heavy-fermion compound CePt3Si:: a 195Pt-NMR study

被引：5

作者：

Yogi, M ^{[1
]}

Kitaoka, Y

Hashimoto, S

Yasuda, T

Settai, R

Matsuda, TD

Haga, Y

Onuki, Y

Rogl, P

Bauer, E

机构：

[1] Osaka Univ, Grad Sch Engn, Dept Mat Engn Sci, Osaka 5608531, Japan

[2] Osaka Univ, Grad Sch Sci, Toyonaka, Osaka 5600043, Japan

[3] Japan Atom Energy Res Inst, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

[4] Vienna Tech Univ, Inst Festkorperphys, A-1040 Vienna, Austria

[5] Univ Vienna, Inst Phys Chem, A-1090 Vienna, Austria

来源：

PHYSICA B-CONDENSED MATTER | 2005年 / 359卷

关键词：

heavy-fermion superconductivity; antiferromagnetism; NMR; nuclear relaxation;

D O I：

10.1016/j.physb.2005.01.072

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report on a (195)pt-NMR study of the antiferromagnetic heavy-fermion (HF) superconductor CePt3Si without an inversion center. The measurements of the nuclear spin-lattice relaxation rate 1/T-1 has revealed a uniform coexistence of anti ferromagnetism and superconductivity. CePt3Si is the first HF superconductor that reveals a peak in 1/T-1 just below T-c and, additionally, does not follow the T-3 law that was observed for most unconventional HF superconductors. We remark that this unexpected superconducting characteristic may be related to the lack of an inversion center in its crystal structure. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：389 / 391

页数：3

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