Electronic tunneling into an isolated vortex in a clean type-II superconductor
François Gygi, Michael Schluter
DOI 10.1103/PhysRevB.41.822 · Physical Review B
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Abstract
The electronic structure of a type-II superconductor is investigated in the vicinity of an isolated vortex by solving the Bogoliubov–de Gennes equations for the quasiparticle amplitudes. The tunneling differential conductance as a function of bias voltage is calculated at the center of the vortex; it shows a pronounced peak near zero bias originating from the lowest quasiparticle bound state. This explains recent scanning-tunneling-microscopy observations by Hess et al. [Phys. Rev. Lett. 62, 214 (1989)]. Quantitative agreement with these experiments can be obtained by considering several intrinsic and extrinsic broadening effects.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| NbSe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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