Open AccessA STUDY ON MAGNETIC THERMALLY FLUX CREEP OF YBa2Cu3O7-δ THIN FILM
Author(s) -
Yitong Zhang,
Xin Jin,
Zhang Chang-Gui,
Jin Jirong,
Yao Xi-Xiam,
Ji Zheng-Ming,
Sun Zhi-Jian,
Yang Sen-Zu
Publication year - 1993
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.42.1174
Subject(s) - activation energy , arrhenius equation , materials science , creep , superconductivity , thin film , magnetic field , flux (metallurgy) , high temperature superconductivity , condensed matter physics , resistor , analytical chemistry (journal) , composite material , chemistry , electrical engineering , physics , nanotechnology , voltage , engineering , chromatography , quantum mechanics , metallurgy
Two high Tc superconductor YBa2Cu3O7-δ thin films, the zero resistance temperature of which were 82K and 71K respectively, were selected for measurement about resistance broadening. The difference in thermal activation energy of the two samples was analyzed with Arrhenius law auggested by Palstra We found that the activation energy decreased depending upon increasing magnetic field. The irreversibi-lity line was B*-(1-T*/Tc)3/2 deduced from our data.