Toward a theory of superconductivity in two-dimensional systems with arbitrary carrier densities in an external magnetic field
- N.N. Bogolyubov Inst. of Theoretical Physics, Kiev (Ukraine)
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.
- OSTI ID:
- 166248
- Journal Information:
- Journal of Experimental and Theoretical Physics, Vol. 80, 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
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