Hall voltage sign reversal in thin superconducting films

Journal Article · Mon Apr 20 04:00:00 EDT 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.68.2524· OSTI ID:7297569

Ferrell, R A ^[1]

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1. Institute for Theoretical Physics, University of California, Santa Barbara, California 93106-4030 (United States) Center for Superconductivity Research, Physics Department, University of Maryland, College Park, Maryland 20742 (United States)

A novel approach to the superconducting Hall effect is developed, based on the opposing drift of the thermally excited quasiparticles. These collide quasielastically with the hydrodynamic superfluid velocity field circulating {ital far} {ital outside} {ital the} {ital core} of a vortex, thereby transferring momentum to the latter. The predicted Hall angle, by BCS theory, is of the order of {ital k}{sub {ital B}T{ital c}} divided by the Fermi energy, has sign opposite to that in the normal state, because of the backflow, and disappears at low temperature.

• OSTI ID: 7297569
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 68:16; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

665411* -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BCS THEORY
DRAG
FILMS
FLUID FLOW
FLUID MECHANICS
HALL EFFECT
HYDRODYNAMICS
MATHEMATICAL MODELS
MECHANICS
NUCLEAR MODELS
QUASI PARTICLES
SUPERCONDUCTING FILMS
SUPERFLUID MODEL
THIN FILMS
TWO-PHASE FLOW
VORTICES