New Andreev-Type States in Superconducting Nanowires
A. A. Shanenko, M. D. Croitoru, R. G. Mints, F. M. Peeters
DOI 10.1103/PhysRevLett.99.067007 · Physical Review Letters
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
Superconducting nanowires can exhibit a spatially inhomogeneous pair condensate that leads to the formation of new Andreev-type states. Such states are mainly located beyond the regions where the order parameter is enhanced, and no normal-superconducting contact or external magnetic field is needed for their formation. Our numerical self-consistent solutions of the Bogoliubov-de Gennes equations for cylindrical nanowires, in the clean limit, demonstrate that these new Andreev-type states decrease the ratio of the energy gap to the critical temperature as compared to its bulk value. The low-lying excitations in a clean superconducting nanowire are these new Andreev-type states induced by quantum confinement of the electrons in the transverse direction.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Sn Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Superconducting nanofilms: Andreev-type states induced by quantum confinement
similarity 0.97A. A. Shanenko et al.
Source status unknown — claims are unverified
Magnetic-field induced quantum-size cascades in superconducting nanowires
similarity 0.94A. A. Shanenko et al.
Source status unknown — claims are unverified
Dependence of superconducting properties on the size and shape of a nanoscale superconductor: From nanowire to film
similarity 0.94M. D. Croitoru et al.
Source status unknown — claims are unverified
Superconducting nanowires: Interplay of discrete transverse modes with supercurrent
similarity 0.93M. D. Croitoru et al.
Source status unknown — claims are unverified
Experimental limits of the observation of thermally activated phase-slip mechanism in superconducting nanowires
similarity 0.92M. Zgirski & K. Yu. Arutyunov
Source status unknown — claims are unverified
Durability of the superconducting gap in Majorana nanowires under orbital effects of a magnetic field
similarity 0.92P. Wójcik & M. P. Nowak
Source status unknown — claims are unverified