Intimate interplay between superconductivity and antiferromagnetism in CeNiGe3:A73 Ge-NQR study under pressure

被引：4

作者：

Harada, A. ^{[1
]}

Mukuda, H. ^{[1
]}

Kitaoka, Y. ^{[1
]}

Thamizhavel, A. ^{[2
]}

Okuda, Y. ^{[2
]}

Settai, R. ^{[2
]}

Onuki, Y. ^{[2
]}

Itoh, K. M. ^{[3
]}

Haller, E. E. ^{[5
,6
]}

Harima, H. ^{[4
]}

机构：

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

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

[3] Keio Univ, Dept Appl Phys & Phys Informat, Yokohama, Kanagawa 2238522, Japan

[4] Keio Univ, Fac Sci, Dept Phys, Kobe, Hyogo 6578501, Japan

[5] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA

[6] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

来源：

PHYSICA B-CONDENSED MATTER | 2008年 / 403卷 / 5-9期

关键词：

CeNiGe3; superconductivity; antiferromagnetism; longitudinal fluctuation; NQR under pressure;

D O I：

10.1016/j.physb.2007.10.080

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report the Ge-73-NQR studies on the antiferromagnetic (AFM) heavy-fermion compound CeNiGe3 which shows two domes like pressure-induced superconducting phases in the pressure (P) ranges of 1.7-3.7GPa and 5.9-7.3GPa denoted as SC1 and SC2, respectively [M. Nakashima, et al., J. Phys. Condens. Matter. 16 (2004) L255, H. Kotegawa, et al., J. Phys. Soc. Jpn. 75 (2006) 044713]. The NQR spectra have revealed a change from an incommensurate AFM structure at P = 0 and 2.0 GPa into a commensurate one at P = 2.8 GPa. The onset of the SCI may be relevant to an intimate evolution from the incommensurate into commensurate AFM-spin structure as P increases. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：1020 / 1022

页数：3

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