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Title: Field dependence of harmonic responses and their anisotropy in YBa2Cu3O7+δ thin films
Authors: Zhang, Y.J.
Ong, P.C.
Ong, C.K. 
Issue Date: Aug-2001
Citation: Zhang, Y.J., Ong, P.C., Ong, C.K. (2001-08). Field dependence of harmonic responses and their anisotropy in YBa2Cu3O7+δ thin films. Superconductor Science and Technology 14 (8) : 567-571. ScholarBank@NUS Repository.
Abstract: The electrodynamic behaviour of the high-temperature superconductors is strongly affected by the anisotropy of these layered materials. When a pair of coils is positioned on opposite sides of a superconducting thin film, measurements of their mutual inductance can be used to infer the anisotropy of the superconductor. The fundamental and higher harmonic responses of YBa2Cu3O7+δ (YBCO) thin films to an alternating driving signal have been studied experimentally as a function of magnetic field for various angles between the applied field and the film plane at several temperatures. The measured data for different angles can be scaled onto a single curve using a three-dimensional scaling relation. The derived anisotropic parameter ranges from 4.4 to 4.8 in the measured temperature region, and is close to that from transport measurements.
Source Title: Superconductor Science and Technology
ISSN: 09532048
DOI: 10.1088/0953-2048/14/8/310
Appears in Collections:Staff Publications

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