Toward a theory of superconductivity in two-dimensional systems with arbitrary carrier densities in an external magnetic field

Title: Toward a theory of superconductivity in two-dimensional systems with arbitrary carrier densities in an external magnetic field

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Abstract

The authors derive self-consistent equations that describe the behavior of the superconducting gap (order parameter) and chemical potential of metallic two-dimensional (2D) systems as a function of external magnetic field H, temperature T, and carrier density. For systems with low carrier densities, the pairs are localized below T{sub c}; the authors show that in such systems the derivative dH{sub c2}(T)/dT at the point T=T{sub c} is considerably smaller than it is for a system in which Cooper pairs form. They find that in external fields that satisfy the criterion for the quantum limit, these systems are characterized by the appearance of a nontrivial nonuniform order parameter at sufficiently high temperatures. 32 refs., 2 figs.

Authors:

Gusynin, V P; Loktev, V P; Shovkovyi, I A ^[1]

N.N. Bogolyubov Inst. of Theoretical Physics, Kiev (Ukraine)

Publication Date:: 1995-06-01

OSTI Identifier:: 166248

Resource Type:: Journal Article

Journal Name:: Journal of Experimental and Theoretical Physics

Additional Journal Information:: Journal Volume: 80; Journal Issue: 6; Other Information: PBD: Jun 1995; TN: Translated from Zhurnal Eksperimental`noi i Teoreticheskoi Fiziki; 107, 2007-202(Jun 1995)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; HIGH-TC SUPERCONDUCTORS; ENERGY GAP; ORDER PARAMETERS; SUPERCONDUCTIVITY; TWO-DIMENSIONAL CALCULATIONS

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                    Gusynin, V P, Loktev, V P, and Shovkovyi, I A. Toward a theory of superconductivity in two-dimensional systems with arbitrary carrier densities in an external magnetic field.  United States: N. p., 1995. 
        Web.

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                    Gusynin, V P, Loktev, V P, & Shovkovyi, I A. Toward a theory of superconductivity in two-dimensional systems with arbitrary carrier densities in an external magnetic field.  United States.

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                    Gusynin, V P, Loktev, V P, and Shovkovyi, I A. Thu .  
        "Toward a theory of superconductivity in two-dimensional systems with arbitrary carrier densities in an external magnetic field".  United States.

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@article{osti_166248,

  title        = {Toward a theory of superconductivity in two-dimensional systems with arbitrary carrier densities in an external magnetic field},

  author       = {Gusynin, V P and Loktev, V P and Shovkovyi, I A},

  abstractNote = {The authors derive self-consistent equations that describe the behavior of the superconducting gap (order parameter) and chemical potential of metallic two-dimensional (2D) systems as a function of external magnetic field H, temperature T, and carrier density. For systems with low carrier densities, the pairs are localized below T{sub c}; the authors show that in such systems the derivative dH{sub c2}(T)/dT at the point T=T{sub c} is considerably smaller than it is for a system in which Cooper pairs form. They find that in external fields that satisfy the criterion for the quantum limit, these systems are characterized by the appearance of a nontrivial nonuniform order parameter at sufficiently high temperatures. 32 refs., 2 figs.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/166248},
  journal      = {Journal of Experimental and Theoretical Physics},
number       = 6,

  volume       = 80,

  place        = {United States},

  year         = {1995},

  month        = {6}

}

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