Dirac quasiparticles and spin-lattice relaxation in the mixed state

被引：4

作者：

Knapp, D ^{[1
]}

Kallin, C

Berlinsky, AJ

Wortis, R

机构：

[1] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada

[2] Trent Univ, Dept Phys, Peterborough, ON K9J 7B8, Canada

来源：

PHYSICAL REVIEW B | 2002年 / 66卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.66.144508

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present the results of quantum-mechanical calculations, using the singular gauge transformation of Franz and Tesanovic [Phys. Rev. Lett. 80, 4763 (1998)], of the rate of planar Cu spin-lattice relaxation due to electron spin-flip scattering in the mixed state of high-T-c cuprate superconductors. The results show a nonmonotonic temperature and frequency dependence that differs markedly from semiclassical Doppler-shifted results, and challenges the assertion that recent experimental observations of the rate of planar Cu and O spin-lattice relaxation in the mixed state of YBa2Cu3O7-delta point to antiferromagnetic spin fluctuations as a better candidate for the elementary excitations of the superconducting state.

引用

页码：1 / 5

页数：5

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