共 50 条
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.
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页码:S658 / S659
页数:2
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