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Title: 1ST CRITICAL FIELDS, CRITICAL CURRENTS AND FLUX CREEP OF TMBA2CU3OX AND YBA2CU3OX SUPERCONDUCTING SINGLE-CRYSTALS
Authors: Moshchalkov, Victor ×
ZHUKOV, AA
GLADYSHEV, IV
GORDEEV, SN
KARAPETROV, GT
KUSNETSOV, VD
METLUSHKO, VV
MURASHOV, VA
VORONKOVA, VI
YANOVSKII, VK #
Issue Date: 1990
Publisher: ELSEVIER SCIENCE BV
Series Title: Journal of magnetism and magnetic materials vol:90-1 pages:611-614
Conference: date:MOSCOW RADIOENGN ELECTR & AUTOMAT INST,MOSCOW 117454,USSR; MOSCOW CHEM ENGN RES INST,MOSCOW 125820,USSR
Abstract: The twin walls influence on transition temperature and critical current density in YBa2Cu3O(x) and TmBa2Cu3O(x) single crystal was studied. The temperature dependence of resistivity shows that the untwinned region superconducting transition temperature exceeds the twinned volume T(c) value by several degrees. The additional vortex pinning by twins at high temperatures T > 40-50 K was observed. The anomalous (and almost linear) increase of the magnetization hysteresis width, corresponding to the critical current density increase, was observed in single crystals. The effect was found to be strongly temperature and angular dependent. The absence of this anomaly in YBa2Cu3O(x) samples suggests the magnetic origin of the critical current growth in magnetic field.
ISSN: 0304-8853
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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