Possible spin triplet superconductivity in NaxCoO2•yH2O -: art. no. 257006

被引:85
作者
Tanaka, A [1 ]
Hu, X [1 ]
机构
[1] Natl Inst Mat Sci, Computat Mat Sci Ctr, Tsukuba, Ibaraki 3050047, Japan
关键词
D O I
10.1103/PhysRevLett.91.257006
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Symmetry-based considerations are combined with inputs from available experimental results to make the case that a novel spin-triplet superconductivity triggered by antiferromagnetic fluctuations may be realized in the newly discovered layered cobaltide NaxCoO2.yH(2)O. In the proposed picture, inaccessible via resonating-valence-bond physics extrapolated from half-filling, the pairing process is similar to that advanced for Sr2RuO4, but enjoys a further advantage coming from the hexagonal structure of the Fermi surface which gives a stronger pairing tendency.
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页数:4
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