Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0921-4534(01)00087-9
Title: Vortex dynamics of (Bi,Pb)2Sr2Ca2Cu3Oy silver-sheathed tape by AC susceptibility measurements
Authors: Zhang, Y.J.
Qin, M.J. 
Ong, C.K. 
Keywords: (Bi,Pb)2Sr2Ca2Cu3 Oy tape
Ac susceptibility
Activation energy
Vortex dynamics
Issue Date: 7-Jan-2001
Source: Zhang, Y.J., Qin, M.J., Ong, C.K. (2001-01-07). Vortex dynamics of (Bi,Pb)2Sr2Ca2Cu3Oy silver-sheathed tape by AC susceptibility measurements. Physica C: Superconductivity and its Applications 356 (1-2) : 46-52. ScholarBank@NUS Repository. https://doi.org/10.1016/S0921-4534(01)00087-9
Abstract: The complex ac susceptibility (χn=χ′ n- iχ′′ n) measurements were performed on a (Bi,Pb)2Sr2Ca2Cu3Oy silver-sheathed tape to study the vortex dynamics in a time window of 10-4-10-2s. The fundamental ac susceptibility of the tape as a function of temperature, ac field amplitudes and frequencies were obtained. The current dependent activation energy was derived as U(j)∝j-0.42, characteristic of the vortex glass/collective pinning model. By using such U(j) relation, higher harmonic susceptibilities χn (n=2-7) were obtained based on the numerical resolution of the flux diffusion equation. We found that theoretical results agree well with experimental data. © 2001 Elsevier Science B.V.
Source Title: Physica C: Superconductivity and its Applications
URI: http://scholarbank.nus.edu.sg/handle/10635/98569
ISSN: 09214534
DOI: 10.1016/S0921-4534(01)00087-9
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