Dispersion of the neutron resonance in cuprate superconductors -: art. no. 180507

被引：40

作者：

Chubukov, AV

Jankó, B

Tchernyshyov, O

机构：

[1] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

[2] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

[3] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

[4] Inst Adv Study, Sch Nat Sci, Princeton, NJ 08540 USA

来源：

PHYSICAL REVIEW B | 2001年 / 63卷 / 18期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevB.63.180507

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We argue that recently measured downward dispersion of the neutron resonance peak in cuprate superconductors is naturally explained if the resonance is viewed as a spin-1 collective mode in a d-wave superconductor. The reduction of the resonant frequency away from the antiferromagnetic wave vector is a direct consequence of the momentum dependence of the d-wave superconducting gap. When the magnetic correlation length becomes large, the dispersion should become magnonlike. i.e.. curve upwards from (pi,pi).

引用

页数：4

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