Nuclear spin-lattice relaxation rate in the D1+iD2 superconducting state:: Implications for CoO superconductor -: art. no. 212504

被引：10

作者：

Bang, Y

Graf, MJ

Balatsky, AV

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[2] Chonnam Natl Univ, Dept Phys, Kwangju 500757, South Korea

来源：

PHYSICAL REVIEW B | 2003年 / 68卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.68.212504

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We calculated the nuclear spin-lattice relaxation rate 1/T-1 for the D-1+iD(2) superconducting state with impurities. We found that small amount of unitary impurities quickly produces the residual density of states inside the gap. As a result, the T-linear behavior in 1/T-1 is observed at low temperatures. Our results show that the D-1+iD(2) pairing symmetry of the superconducting state of Na0.35CoO2.yH(2)O is compatible with recent Co-59 1/T-1 experiments of several groups.

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