15N NMR studies of layered nitride superconductor LixZrNCl

被引：6

作者：

Tou, H. ^{[1
,2
]}

Oshiro, S. ^{[1
]}

Kotegawa, H. ^{[1
,2
]}

Taguchi, Y. ^{[3
,5
]}

Kishiume, Y. ^{[4
]}

Kasahara, Y. ^{[4
]}

Iwasa, Y. ^{[4
,5
]}

机构：

[1] Kobe Univ, Dept Phys, Grad Sch Sci, Kobe, Hyogo 6578501, Japan

[2] JST TRIP, Kawaguchi, Saitama 3320012, Japan

[3] RIKEN, ASI, Cross Correlated Mat Res Grp, Wako, Saitama 3510198, Japan

[4] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

[5] Japan Sci & Technol Corp, CREST, Kawaguchi, Saitama 3320012, Japan

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2010年 / 470卷

关键词：

Nitride; Superconductivity; ZrNCl; HfNCl; NMR; CHLORIDE;

D O I：

10.1016/j.physc.2009.11.118

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

NMR measurements were carried out on pristine ZrNCl and LixZrNCl. From the N-15-Knight shift study, the isotropic Knight shift, the traceless chemical (orbital) shift tensor and the traceless Knight shift tensor were determined as K-iso = -71 PPm. (sigma(1), sigma(2), sigma(3)) = (-55, -55, 110) ppm and (K-1, K-2, K-3) = (48, 48, -96) ppm, respectively. In the superconducting state, the fractional change of the N-15 NMR shift for H parallel to ab was observed, evidencing that the pairing symmetry is a spin-singlet state. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：S658 / S659

页数：2

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