Electronic structure of a vortex line in a type-II superconductor: Effect of atomic crystal fields

Journal Article · Sun Jan 01 00:00:00 EST 1995 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.51.1105· OSTI ID:6712528

Zhu, Y ^[1]; Zhang, F C ^[2]; Sigrist, M ^[3]

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1. Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221 (United States)
2. Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221 (United States) Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-01 (Japan)
3. Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

We consider a single vortex line in a tight-binding model on a square lattice with an [ital s]-wave pairing interaction. The model is exactly solved within the framework of the self-consistent Bogoliubov--de Gennes formalism for a finite-size system. The energy spectrum, quasiparticle amplitudes, the gap function, and the current distribution are calculated. The tunneling conductance images are found to show a fourfold star shape, whose orientation depends on the bias voltage.

• OSTI ID: 6712528
• Journal Information: Physical Review, B: Condensed Matter; (United States), Vol. 51:2; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
SUPERCONDUCTIVITY
ELECTRONIC STRUCTURE
ANALYTICAL SOLUTION
BOGOLYUBOV METHOD
CRYSTAL FIELD
ENERGY GAP
FLUX QUANTIZATION
MAGNETIC FLUX
CALCULATION METHODS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
PHYSICAL PROPERTIES
665411* - Basic Superconductivity Studies- (1992-)