Hysteretic Magnetization Curves of Coated Conductors Calculated Using Measured Field-Profile Data

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The hysteretic magnetization curves of superconducting ReBa2CU3O7 (ReBCO, RE: Y, Sm) films were investigated. The YBCO and the SmBCO films were grown on ion-beam-assisted-deposition (IBAD) templates by using the pulsed laser deposition (PLD) method and the coevaporation method, respectively. The field profiles, H(x), near the surfaces of the samples in a magnetic field applied in a direction perpendicular to the surface, H-a, were measured using a scanning Hall probe method. The corresponding sheet current profiles, J(x), in the superconducting thin films were obtained by numerical inversion of the measured field profile data. The negative magnetic moment, M(H-a), per unit length was estimated from J(x). The calculated magnetization hysteresis loops for H-a cycled with amplitude -H-peak were in remarkable agreement with that measured by using a magnetometer. The differences in the hysteresis loops between the two samples are due to the granular characteristics of the samples.
Publisher
KOREAN PHYSICAL SOC
Issue Date
2008-10
Language
English
Article Type
Article
Keywords

STRIP

Citation

JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.53, pp.2160 - 2164

ISSN
0374-4884
URI
http://hdl.handle.net/10203/91718
Appears in Collection
PH-Journal Papers(저널논문)
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