Relaxation of nuclear magnetic moments and site-selective NMR in d-wave superconductors

被引：2

作者：

Throckmorton, Robert E. ^{[1
]}

Vafek, Oskar

机构：

[1] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 10期

关键词：

SPIN-LATTICE-RELAXATION; MIXED-STATE; CUPRATE SUPERCONDUCTORS; QUASI-PARTICLES; VORTEX CORES; YBA2CU3O7; FIELD; MODEL;

D O I：

10.1103/PhysRevB.81.104515

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A mechanism for relaxing the nuclear magnetic moments, in which a pair of spin-polarized BCS quasiparticles is emitted or absorbed, and which dominates at low temperature, is identified in type-II d-wave superconductors in an external magnetic field above H(c1). The results of the theory are compared with the NMR experiments on YBCO in high magnetic fields and found to agree without invoking antiferromagnetic order in the vortex core.

引用

页数：10

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