SMALL-ANGLE NEUTRON-SCATTERING STUDY OF FLUX LINE LATTICES IN TWINNED YBA2CU3O7

被引：75

作者：

YETHIRAJ, M

MOOK, HA

WIGNALL, GD

CUBITT, R

FORGAN, EM

PAUL, DM

ARMSTRONG, T

机构：

[1] UNIV BIRMINGHAM,SUPERCONDUCT RES GRP,BIRMINGHAM B15 2TT,W MIDLANDS,ENGLAND

[2] UNIV WARWICK,DEPT PHYS,COVENTRY CV4 7AL,W MIDLANDS,ENGLAND

[3] ALLIED SIGNAL RES LABS,TORRANCE,CA 90509

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.70.857

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A small-angle neutron study of vortex lattices in YBa2Cu3O7 showed a diffraction pattern with square symmetry when the applied field was along the c axis with the four main spots aligned with the crystallographic {110} directions. With the field 30-degrees from the c axis, a hexagonal lattice exists. At intermediate angles, a fraction of the flux lines follow the c axis and the two lattices coexist. The temperature dependence of the intensity deviates markedly from conventional predictions.

引用

页码：857 / 860

页数：4

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