6533b861fe1ef96bd12c4e0c
RESEARCH PRODUCT
Superconducting size effect in thin films under electric field: Mean-field self-consistent model
Alessandro BraggioPauli VirtanenFrancesco Giazottosubject
---Josephson effectsuprajohtavuusFOS: Physical sciences02 engineering and technology01 natural sciencessuprajohteetSuperconductivity (cond-mat.supr-con)superconducting phase transitionElectric fieldCondensed Matter::Superconductivity0103 physical sciencesThin film010306 general physicsScalingCondensed Matter::Quantum GasesSuperconductivityPhysicsCondensed matter physicsCondensed Matter - SuperconductivityFermi energy021001 nanoscience & nanotechnologyMean field theorythin filmsmesoscopicsohutkalvot0210 nano-technologyEnergy (signal processing)description
We consider effects of an externally applied electrostatic field on superconductivity, self-consistently within a BCS mean field model, for a clean 3D metal thin film. The electrostatic change in superconducting condensation energy scales as $\mu^{-1}$ close to subband edges as a function of the Fermi energy $\mu$, and follows 3D scaling $\mu^{-2}$ away from them. We discuss nonlinearities beyond gate effect, and contrast results to recent experiments.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-03-04 | Physical Review B |