Estimation of intragrain magnetic flux motion viscosity in high-temperature superconductors

被引：16
作者：
Kordyuk, AA
Nemoshkalenko, VV
机构：
[1] Institute of Metal Physics, National Academy of Science of Ukraine, 252680 Kiev 142
来源：
JOURNAL OF SUPERCONDUCTIVITY | 1996年 / 9卷 / 01期
关键词：
granular superconductors; flux motion; energy losses; levitation;
D O I：
10.1007/BF00728429
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A simple method for evaluation of the lower limit of intragrain magnetic flux motion viscosity is presented. We have also shown that in our experiment the energy loss in an alternating magnetic field in a granular YBa2Cu3O7-x, superconductor prepared by the standard sintering method is determined by thermally assisted magnetic flux flow into superconducting grains and does not depend on the intergrain space.
引用
收藏
页码：77 / 79
页数：3
相关论文
共 14 条
[1]   OSCILLATOR STUDIES OF INTRAGRAIN AND INTERGRAIN DISSIPATION IN Y-BA-CU-O AND BI-PB-SR-CA-CU-O CERAMIC SUPERCONDUCTORS [J].
BAAR, DJ ;
FRANCK, JP ;
HARRISON, JP ;
LACROIX, Y ;
YU, MK .
PHYSICA C, 1990, 170 (3-4) :233-238
[2]  
BRANDT EH, 1989, J APPL PHYS, V65, P4936
[3]   MODEL FOR FLUX CREEP IN HIGH-TC SUPERCONDUCTORS [J].
DEWHUGHES, D .
CRYOGENICS, 1988, 28 (10) :674-677
[4]   EVIDENCE FROM MECHANICAL MEASUREMENTS FOR FLUX-LATTICE MELTING IN SINGLE-CRYSTAL YBA2CU3O7 AND BI2.2SR2CA0.8CU2O8 [J].
GAMMEL, PL ;
SCHNEEMEYER, LF ;
WASZCZAK, JV ;
BISHOP, DJ .
PHYSICAL REVIEW LETTERS, 1988, 61 (14) :1666-1669
[5]   THERMALLY ASSISTED FLUX FLOW AT SMALL DRIVING FORCES [J].
KES, PH ;
AARTS, J ;
VANDENBERG, J ;
VANDERBEEK, CJ ;
MYDOSH, JA .
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1989, 1 (05) :242-248
[6]  
MALOZEMOFF AP, 1989, PHYSICAL PROPERTIES
[7]   DYNAMICS OF A PERMANENT-MAGNET LEVITATING ABOVE A HIGH-TC SUPERCONDUCTOR [J].
NEMOSHKALENKO, VV ;
BRANDT, EH ;
KORDYUK, AA ;
NIKITIN, BG .
PHYSICA C, 1990, 170 (5-6) :481-485
[8]   STATICS AND DYNAMICS IN THE SYSTEM OF HIGH-TC SUPERCONDUCTOR AND PERMANENT-MAGNET [J].
NEMOSHKALENKO, VV ;
IVANOV, MA ;
NIKITIN, BG ;
POGORELOV, YG .
JOURNAL OF SUPERCONDUCTIVITY, 1991, 4 (06) :411-414
[9]   INVESTIGATION OF Y1BA2CU3O6.9 AND ER1BA2CU3O6.8 DURING CYCLIC TEMPERATURE-VARIATIONS [J].
NEMOSHKALENKO, VV ;
KORNYUSHIN, YV ;
KOBZENKO, NS ;
MOROZOVSKY, AD ;
NIKITIN, BG ;
SHPAK, AP .
JOURNAL OF MATERIALS SCIENCE, 1991, 26 (02) :545-551
[10]  
NEMOSHKALENKO VV, 1994, PHYS MET, V13, P599
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