77Se NMR studies on magic angle effect and nature of the superconducting state in the organic superconductors (TMTSF)2X

被引：0
|
作者：
J. Shinagawa
W. Wu
P. M. Chaikin
W. Kang
W. Yu
F. Zhang
Y. Kurosaki
C. Parker
S. E. Brown
机构：
[1] UCLA,Department of Physics & Astronomy
[2] Princeton University,Department of physics
[3] University of Chicago,Department of Physics
[4] University of Tokyo,Department of Applied Physics
[5] Harvey Mudd College,Department of Physics
来源：
Journal of Low Temperature Physics | 2006年 / 142卷
关键词：
74.70.Kn; 75.30Gw; 76.60.-k; 74.60.Ec;
D O I：
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学科分类号：
摘要：
The77Se NMR spin lattice relaxation rate in (TMTSF)2PF6 in the regime of the Magic Angle Effect (MAE) exhibits no significant changes as the magnetic field orientation is rotated through the MAs, from which we conclude that there is no evidence for either a single-particle gap, or a gap in the spin excitation spectrum. Furthermore, no effect on the FISDW transition temperature was observed at the Magic Angles. As previously reported for (TMTSF)2PF6 at high pressures, the Knight shift in the superconducting state of (TMTSF)2ClO4 is inconsistent with a uniform singlet spin pairing.
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页码：227 / 232
页数：5
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