Studies of HTSC crystal magnetization features using indicator magnetooptic films with in-plane anisotropy

Indicator ferrimagnetic films with in-plane anisotropy are applied for studying the magnetic flux distribution in high- T c YBaCuO (YBa 2Cu 3O 7) single crystals. Induction gradients are measured to estimate the critical current density J c. Temperature dependences of J c are found to be different f...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 1992-12, Vol.203 (1), p.149-156
Main Authors: Dorosinskii, L.A., Indenbom, M.V., Nikitenko, V.I., Ossip'yan, Yu.A., Polyanskii, A.A., Vlasko-Vlasov, V.K.
Format: Article
Language:English
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Summary:Indicator ferrimagnetic films with in-plane anisotropy are applied for studying the magnetic flux distribution in high- T c YBaCuO (YBa 2Cu 3O 7) single crystals. Induction gradients are measured to estimate the critical current density J c. Temperature dependences of J c are found to be different for different field directions. For the field along the orthorhombic c-axis J c∥ ab exhibits an exponential temperature decay. In the case of H∥ ab, however, J c∥ ab is changed just a little up to 70 K and then drops sharply near T c.
ISSN:0921-4534
1873-2143
DOI:10.1016/0921-4534(92)90521-D