Novel neutron resonance mode in dx2-y2-wave superconductors -: art. no. 147001

被引：110

作者：

Eremin, I ^{[1
]}

Morr, DK

Chubukov, AV

Bennemann, KH

Norman, MR

机构：

[1] Free Univ Berlin, Inst Theoret Phys, D-14195 Berlin, Germany

[2] Univ Illinois, Dept Phys, Chicago, IL 60607 USA

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

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

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 14期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.94.147001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that a new resonant magnetic excitation at incommensurate momenta, observed recently by inelastic neutron scattering experiments on YBa(2)Cu(3)O(6.85) and YBa(2)Cu(3)O(6.6), is a spin exciton. Its location in the Brillouin zone and its frequency are determined by the momentum dependence of the particle-hole continuum. We identify several features that distinguish this novel mode from the previous resonance mode observed near Q=(pi,pi).

引用

页码：1 / 4

页数：4