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The nature of transport critical current hysteresis in HTSC: magnetic fields and high pressures. [Y-Ba-Cu-O]

Abstract

It was found that pressure has a strong influence on the critical current hysteresis loop of ceramics at H {proportional to} 10 kOe. The phenomenon is attributed to the critical current hysteresis of separate Josephson contacts and is due to the Abrikosov vortex density gradient within granules. The gradient defines both the sign and the value of the pinning current, whereas the sign of Meissner reversible surfaces current component is determined by the external field H direction. As a result the critical current of Josephson contacts defined by the total surface value depends on the magnetic prehistory of a sample. (orig.).
Authors:
Svistunov, V M; Yachenko, A.I. d'; Tarenkov, V Yu [1] 
  1. Donetsk Physico-Technical Inst., Ukrainian SSR (USSR)
Publication Date:
Dec 01, 1991
Product Type:
Conference
Report Number:
CONF-910736-
Reference Number:
NLF-92-001047; EDB-92-079628
Resource Relation:
Journal Name: Physica C: Superconductivity; (Netherlands); Journal Volume: 185-189:pt.4; Conference: International conference on materials and mechanisms of superconductivity, Kanazawa (Japan), 22-26 Jul 1991
Subject:
36 MATERIALS SCIENCE; HIGH-TC SUPERCONDUCTORS; CRITICAL CURRENT; HYSTERESIS; PRESSURE DEPENDENCE; ABRIKOSOV THEORY; BARIUM OXIDES; CERAMICS; COPPER OXIDES; CRITICAL FIELD; ELECTRIC CONTACTS; JOSEPHSON JUNCTIONS; MAGNETIC FIELDS; MEISSNER-OCHSENFELD EFFECT; QUATERNARY COMPOUNDS; SUPERCONDUCTIVITY; VERY HIGH PRESSURE; YTTRIUM OXIDES; ALKALINE EARTH METAL COMPOUNDS; AMINES; AMMONIUM COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CURRENTS; ELECTRIC CONDUCTIVITY; ELECTRIC CURRENTS; ELECTRICAL EQUIPMENT; ELECTRICAL PROPERTIES; EQUIPMENT; JUNCTIONS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SUPERCONDUCTING JUNCTIONS; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS; 360207* - Ceramics, Cermets, & Refractories- Superconducting Properties- (1992-); 360204 - Ceramics, Cermets, & Refractories- Physical Properties
OSTI ID:
5333479
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0921-4534; CODEN: PHYCE
Submitting Site:
NLF
Size:
Pages: 2429-2430
Announcement Date:
May 13, 2001

Citation Formats

Svistunov, V M, Yachenko, A.I. d', and Tarenkov, V Yu. The nature of transport critical current hysteresis in HTSC: magnetic fields and high pressures. [Y-Ba-Cu-O]. Netherlands: N. p., 1991. Web.
Svistunov, V M, Yachenko, A.I. d', & Tarenkov, V Yu. The nature of transport critical current hysteresis in HTSC: magnetic fields and high pressures. [Y-Ba-Cu-O]. Netherlands.
Svistunov, V M, Yachenko, A.I. d', and Tarenkov, V Yu. 1991. "The nature of transport critical current hysteresis in HTSC: magnetic fields and high pressures. [Y-Ba-Cu-O]." Netherlands.
@misc{etde_5333479,
title = {The nature of transport critical current hysteresis in HTSC: magnetic fields and high pressures. [Y-Ba-Cu-O]}
author = {Svistunov, V M, Yachenko, A.I. d', and Tarenkov, V Yu}
abstractNote = {It was found that pressure has a strong influence on the critical current hysteresis loop of ceramics at H {proportional to} 10 kOe. The phenomenon is attributed to the critical current hysteresis of separate Josephson contacts and is due to the Abrikosov vortex density gradient within granules. The gradient defines both the sign and the value of the pinning current, whereas the sign of Meissner reversible surfaces current component is determined by the external field H direction. As a result the critical current of Josephson contacts defined by the total surface value depends on the magnetic prehistory of a sample. (orig.).}
journal = []
volume = {185-189:pt.4}
place = {Netherlands}
year = {1991}
month = {Dec}
}