Laser scanning imaging and local characterization of superconducting properties in high-Tc thin film multiturn coil

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Sivakov, A.G. and Zhuravel, A.P. and Turutanov, O.G. and Dmitrenko, I.M. and Hilgenkamp, H. and Brons, G.C.S. and Flokstra, J. and Rogalla, H. (1994) Laser scanning imaging and local characterization of superconducting properties in high-Tc thin film multiturn coil. Physica C: Superconductivity, 232 (1-2). pp. 93-98. ISSN 0921-4534

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Abstract:Low-temperature scanning laser microscopy has been used to investigate the spatial variation of the critical temperature Tc and critical current Ic in thin-film high-Tc multilayer structures that include dielectric layers. The method is described and measurements are presented on an YBa2Cu3O7-x-based multiturn coil with SrTiO3 insulating layer. We found that the critical temperature Tc of the YBa2Cu3O7-x top layer, from which the return strip of the coil is formed, is higher than that of the YBa2Cu3O7-x base layer. The critical current of the coil is limited by the quality of the YBa2Cu3O7-x base layer and not by the edges of the crossovers.
Item Type:Article
Copyright:© 1994 Elsevier Science
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/23769
Official URL:http://dx.doi.org/10.1016/0921-4534(94)90298-4
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Metis ID: 128568