NEUTRON-SCATTERING AND SUPERCONDUCTING ORDER-PARAMETER IN YBA2CU3O7

被引：97

作者：

MAZIN, II

YAKOVENKO, VM

机构：

[1] UNIV MARYLAND,DEPT PHYS,COLLEGE PK,MD 20742

[2] UNIV MARYLAND,CTR SUPERCONDUCT,COLLEGE PK,MD 20742

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 22期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.75.4134

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We discuss the origin of the neutron scattering peak at 41 meV observed in YBa2Cu3O7 below T-c. The peak may occur due to spin-flip electron excitations across the superconducting gap which are enhanced by the antiferromagnetic interaction between Cu spins. In this picture, the experiment is most naturally explained if the superconducting order parameter has s-wave symmetry and opposite signs in the bonding and antibonding electron bands formed within a Cu2O4 bilayer.

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页码：4134 / 4137

页数：4

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