Loss of Superconductivity in Magnetic Fields

Authored by: Rudolf P. Huebener

Handbook of Superconductivity

Print publication date:  July  2022
Online publication date:  July  2022

Print ISBN: 9781439817322
eBook ISBN: 9780429179181
Adobe ISBN:


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In addition to the magnetic penetration depth λ discussed in Chapter A2.4, there is another important length scale: the superconducting coherence length ξ0 first introduced by Pippard [1]. The length ξ0 is a measure of the spatial extent of the wave function describing Cooper pairs and is therefore the minimum distance over which the density n s of superconducting electrons can change significantly. It indicates the spatial rigidity of the superconducting wave function. An estimate based on the Heisenberg uncertainty principle yields A2.5.1 ξ o ≈ ℏ v F Δ ≈ ℏ v F k B T c

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