115In NQR studies of CeRhIn5 and CeCoIn5 under high pressure

被引：12

作者：

Kohori, Y ^{[1
]}

Taira, H

Fukazawa, H

Kohara, T

Iwamoto, Y

Matsumoto, T

Maple, MB

机构：

[1] Chiba Univ, Dept Phys, Fac Sci, Chiba 2638522, Japan

[2] Chiba Univ, Grad Sch Sci & Technol, Chiba 2638522, Japan

[3] Kobe Univ, Div Cargo & Transportat Sci, Kobe, Hyogo 6580022, Japan

[4] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050044, Japan

[5] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

[6] Univ Calif San Diego, Inst Pure & Appl Phys Sci, La Jolla, CA 92093 USA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2006年 / 408卷

关键词：

In-115; NQR; CeCoIn5; CeRhIn5; superconductivity; heavy fermion;

D O I：

10.1016/j.jallcom.2005.04.082

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have carried out In-115 nuclear quadrupole resonance (NQR) measurements in CeRhIn5 and CeCoIn5 under presure P. The nuclear spinlattice relaxation rates, 1/T-1, of In-115 indicated that the anisotropic superconductivity with line nodes occurred near an antiferromagnetic state. The application of P suppressed the antiferromagnetic, AF, spin fluctuations and moves the system away from the AF state to the non-magnetic Fermi liquid state. The P dependence of 1/T-1 in the superconducting state of CeCoIn5 shows that the magnitude of the superconducting energy gap scales with its T-C up to 3.0 GPa. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：51 / 53

页数：3

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