Electric-field effect devices made of YBa2Cu3O7-x/SrTiO3 epitaxial multilayers

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Joosse, K. and Boguslavskij, Yu.M. and Gerritsma, G.J. and Rogalla, H. and Wen, J.G. and Sivakov, A.G. (1994) Electric-field effect devices made of YBa2Cu3O7-x/SrTiO3 epitaxial multilayers. Physica C: Superconductivity, 224 (1-2). pp. 179-184. ISSN 0921-4534

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Abstract:Three terminal superconducting electric-field effect devices, consisting of a bufferlayer of PrBa2Cu3O7-x, an ultrathin layer of YBa2Cu3O7-x and a SrTiO3 gate isolation layer were fabricated and successfully operated. Transmission electron microscopy and laser scanning microscopy showed that all layers are highly epitaxial and uniform over the device area. This is essentially important in the analysis of the mechanism of the electric field effect and for the reproducible fabrication of devices. With a 5 nm thick YBa2Cu3O7-x layer and an applied electric field of 0.85 MV/cm the critical current was decreased by 5% at low temperatures and up to 36% close to Tc. Also enhancement was obtained.
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/23782
Official URL:http://dx.doi.org/10.1016/0921-4534(94)90620-3
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Metis ID: 128581