caa a22 4500 445383011 CHVBK 20180317143023.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s10948-010-1085-1 doi (NATIONALLICENCE)springer-10.1007/s10948-010-1085-1 Vortex Activation Energy and Normalized Magnetization Relaxation Rate in the YBa2Cu3O7− δ /YSZ Quasi-multilayer [Elektronische Daten] [L. Peng, Y. Liu, T. Gao, C. Cai, J. Zhang] The quasi-multilayer films of YBa2Cu3O7−δ /YSZ are prepared by means of pulsed laser deposition (PLD) and a systematic study of I-V characteristic curves for the YBCO/YSZ quasi-multilayer film are presented, with magnetic fields up to 7T and 15 K<T<80K. The activation energy E(H,T) for flux line depinning is determined by fitting the nonlinear of the curves up to the flux flow region. And magnetization relaxation rate S(T) is also approximately obtained by a convenient way. The results show the S(T) plateau-like domain for the YBa2Cu3O7−δ /YSZ quasi-multilayer film develops at high H (∼ 7T) at intermediate temperatures 25 K<T<55K, while the S(T) plateau-like domain for the optimally doped YBa2Cu3O7−δ films disappears at H=2T, which implies the defects introduced in the quasi-multilayer serve as strong pinning centers and influence the thermal activated state of the system at low bias current values. Springer Science+Business Media, LLC, 2010 I - V characteristic nationallicence Activation energy nationallicence Magnetization relaxation rate nationallicence Peng L. Department of Mathematics and Physics, Shanghai University of Electric Power, 200090, Shanghai, China aut Liu Y. Department of Mathematics and Physics, Shanghai University of Electric Power, 200090, Shanghai, China aut Gao T. Department of Mathematics and Physics, Shanghai University of Electric Power, 200090, Shanghai, China aut Cai C. Department of Physics, Shanghai University, 200444, Shanghai, China aut Zhang J. Department of Physics, Shanghai University, 200444, Shanghai, China aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/5(2011-07-01), 1683-1686 1557-1939 24:5<1683 2011 24 10948 https://doi.org/10.1007/s10948-010-1085-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-1085-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Peng L. Department of Mathematics and Physics, Shanghai University of Electric Power, 200090, Shanghai, China aut NATIONALLICENCE 700 1- Liu Y. Department of Mathematics and Physics, Shanghai University of Electric Power, 200090, Shanghai, China aut NATIONALLICENCE 700 1- Gao T. Department of Mathematics and Physics, Shanghai University of Electric Power, 200090, Shanghai, China aut NATIONALLICENCE 700 1- Cai C. Department of Physics, Shanghai University, 200444, Shanghai, China aut NATIONALLICENCE 700 1- Zhang J. Department of Physics, Shanghai University, 200444, Shanghai, China aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/5(2011-07-01), 1683-1686 1557-1939 24:5<1683 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer