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Nanoscience and engineering in superconductivity
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SYSNO ASEP 0355606 Document Type M - Monograph Chapter R&D Document Type Monograph Chapter Title Surface superconductivity controlled by electric field Author(s) Lipavský, Pavel (FZU-D)
Koláček, Jan (FZU-D) RID, ORCID
Morawetz, K. (DE)Number of authors 3 Source Title Nanoscience and engineering in superconductivity. - Berlin : Springer, 2010 / Moshchalkov, V. ; Wördenweber, R. ; Lang, W. - ISBN 9783642151361 Pages s. 281-298 Number of pages 18 s. Number of pages 395 Language eng - English Country DE - Germany Keywords superconductivity at the nanoscale Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects GA202/08/0326 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10100521 - FZU-D (2005-2011) Annotation We discuss an effect of the electrostatic field on superconductivity near the surface. First, we use the microscopic theory of de Gennes to show that the electric field changes the boundary condition for the Ginzburg-Landau function. Second, the effect of the electric field is evaluated in the vicinity of Hc3, where the boundary condition plays a crucial role. We predict that the field effect on the surface superconductivity leads to a discontinuity of the magnetocapacitance. We estimate that the predicted discontinuity is accessible for nowadays experimental tools and materials. It is shown that the magnitude of this discontinuity can be used to predict the dependence of the critical temperature on the charge carrier density which can be tailored by doping. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2011
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