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

被引：74
|
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
收藏
页码：857 / 860
页数：4
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