Flux avalanches in superconducting films with periodic arrays of holes

被引:39
作者
Vlasko-Vlasov, V
Welp, U
Metlushko, V
Crabtree, GW
机构
[1] Argonne Natl Lab, Argonne, IL 60439 USA
[2] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Russia
来源
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2000年 / 341卷
关键词
D O I
10.1016/S0921-4534(00)00895-9
中图分类号
O59 [应用物理学];
学科分类号
摘要
The magnetic Aux dynamics in Nh films with periodic hole arrays is studied magneto-optically. Flux motion in the shape of microavalanches along {100} and {110} directions of the hole lattice is observed. At lower temperatures anisotropic large scale thermo-magnetic avalanches dominate flux entry and exit. At T similar to T-C critical-state-like field patterns periodically appear at fractions of the matching field.
引用
收藏
页码:1281 / 1282
页数:2
相关论文
共 6 条
[1]   Electromagnetic pinning of vortices on different types of defects [J].
Buzdin, A ;
Daumens, M .
PHYSICA C, 1998, 294 (3-4) :257-269
[2]   NONLINEAR FLUX DIFFUSION IN SUPERCONDUCTORS [J].
GUREVICH, A .
INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 1995, 9 (09) :1045-1065
[3]   ON THE MAGNETIC FLUX - BRANCHING INSTABILITY IN SUPERCONDUCTORS [J].
Maksimov, I. L. .
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1994, 235-40 :3017-3018
[4]   Interstitial flux phases in a superconducting niobium film with a square lattice of artificial pinning centers [J].
Metlushko, V ;
Welp, U ;
Crabtree, GW ;
Osgood, R ;
Bader, SD ;
DeLong, LE ;
Zhang, Z ;
Brueck, SRJ ;
Ilic, B ;
Chung, K ;
Hesketh, PJ .
PHYSICAL REVIEW B, 1999, 60 (18) :R12585-R12588
[5]   CRITICAL STATE STABILITY IN TYPE-II SUPERCONDUCTORS AND SUPERCONDUCTING-NORMAL-METAL COMPOSITES [J].
MINTS, RG ;
RAKHMANOV, AL .
REVIEWS OF MODERN PHYSICS, 1981, 53 (03) :551-592
[6]  
MKRTCHYAN GS, 1972, ZH EKSP TEOR FIZ, V34, P195