Sign change of the flux flow Hall effect in HTSC

Technical Report · Fri Nov 01 04:00:00 EST 1996

DOI:https://doi.org/10.2172/396730· OSTI ID:396730

Feigel`man, M V ^[1]; Geshkenbein, V B ^[2]; Larkin, A I ^[3]; Vinokur, V M ^[4]

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1. AN SSSR, Moscow (Russian Federation). Inst. Teoreticheskoj Fiziki
2. AN SSSR, Moscow (Russian Federation). Inst. Teoreticheskoj Fiziki; Eidgenoessische Technische Hochschule, Zurich (Switzerland). Inst. fuer Theoretische Physik
3. AN SSSR, Moscow (Russian Federation). Inst. Teoreticheskoj Fiziki; Argonne National Lab., IL (United States)
4. Argonne National Lab., IL (United States)

A novel mechanism for the sign change of the Hall effect in the flux flow region is proposed. The difference {delta}{ital n} between the electron density at the center of the vortex core and that far outside the vortex causes the additional contribution to the Hall conductivity {delta}{sigma}{sub xy} = -{delta}{ital nec}/{ital B}. This contribution can be larger than the conventional one in the dirty case {Delta}{ital T}{tau} {lt} 1. If the electron density inside the core exceeds the electron density far outside, a double sign change may occur as a function of temperature.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); International Science Foundation; Swiss National Science Foundation, Bern (Switzerland); California Univ., Berkeley, CA (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 396730
• Report Number(s): ANL/MSD/PP--83093; ON: DE97000559; CNN: Grant PHY89-04035; ISF Grant M6M000
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BCS THEORY
CONSERVATION LAWS
ELECTRON DENSITY
HALL EFFECT
HIGH-TC SUPERCONDUCTORS
INTEGRAL EQUATIONS
LORENTZ FORCE
MATHEMATICAL MODELS
SUPERCONDUCTIVITY