Magnetic screening by a thin superconducting surface layer
Charles Kittel, S. Fahy, Steven G. Louie
DOI 10.1103/PhysRevB.37.642 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
A solid may have a superconducting surface layer because of changes from the bulk in structure, atomic spacing, and composition. If fluxoids do not come into thermal equilibrium by penetration of the surface barrier, magnetic screening by the layer may simulate in part the diamagnetic susceptibility of a bulk superconductor if the layer thickness exceeds 2λ2R, where λ is the penetration depth and R the radius of the cylindrical insulator. Thus the critical thickness for screening may be less than λ. Continuous coverage is not necessary for screening to obtain. It is essential to carry out a true Meissner cooling before identifying a material as a superconductor.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| CuCl Archive — disputed claim Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Large Predicted Self-Field Critical Current Enhancements In Superconducting Strips Using Magnetic Screens
similarity 0.87Yu. A. Genenko et al.
Source status unknown — claims are unverified
Large Predicted Self-Field Critical Current Enhancements In Superconducting Strips Using Magnetic Screens
similarity 0.87Yu. A. Genenko et al. · 2000 · arXiv:cond-mat/0008247
Source status unknown — claims are unverified
Surface energy and magnetocapacitance of superconductors under electric field bias
similarity 0.85K. Morawetz et al.
Source status unknown — claims are unverified
Non-gapless excitation and zero-bias fast oscillations in the LDOS of surface superconducting states
similarity 0.85Liangyuan Chen et al. · 2023 · arXiv:2307.12372
Source status unknown — claims are unverified
Magnetic properties of high-Tc superconducting grains
similarity 0.85Du-Xing Chen & Alvaro Sanchez
Source status unknown — claims are unverified
Surface superconducting states and paramagnetism in mesoscopic superconductors
similarity 0.84C. Meyers
Source status unknown — claims are unverified