Superconducting size effect in thin films under electric field: Mean-field self-consistent model
Virtanen, P., Braggio, A., & Giazotto, F. (2019). Superconducting size effect in thin films under electric field: Mean-field self-consistent model. Physical Review B, 100(22), Article 224506. https://doi.org/10.1103/PhysRevB.100.224506
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Physical Review BDate
2019Copyright
© 2019 American Physical Society
We consider the effects of an externally applied electrostatic field on superconductivity, self-consistently within a BCS mean-field model, for a clean three-dimensional (3D) metal thin film. The electrostatic change in superconducting condensation energy scales as Δ/μ close to subband edges as a function of the Fermi energy μ and follows 3D scaling (Δ/μ)2 away from them. We discuss nonlinearities beyond the gate effect and contrast results with recent experiments on gating effects on Josephson junctions.
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American Physical SocietyISSN Search the Publication Forum
2469-9950Keywords
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European CommissionFunding program(s)
FET Future and Emerging Technologies, H2020
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Additional information about funding
F.G. and P.V. acknowledge the MIURFIRB2013-Project Coca (Grant No. RBFR1379UX) and the European Research Council under the European Union's Seventh Framework Programme (FP7/2007-2013)/ERC Grant Agreement No. 615187-COMANCHE and the Horizon research and innovation program under Grant Agreement No. 800923 (SUPERTED) for partial financial support. F.G. acknowledges the innovation program under Grant ...
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