On the Superconductivity of 2D System with Arbitrary Carrier Density in External Magnetic Field

Details On the Superconductivity of 2D System with Arbitrary Carrier Density in External Magnetic Field On the Superconductivity of 2D System with Arbitrary Carrier Density in External Magnetic Field

1995-06-22

arxiv.org/abs/cond-mat/9506102v1

Physics

Condensed Matter

9 pages, LaTeX, no figures, shortened vertion of paper Sov. Phys. JETP V.107,No.6,1995

Scientific paper

Selfconsistent equations which describe the order parameter and chemical potential behaviour in $2D$ metalic system as functions of external magnetic field, $H$, temperature, $T$, and carrier density, $n$, are obtained. It is shown that for the case of the local pairs (low carrier density and negative chemical potential $\mu$) the derivative $dH_{c_2}(T)/dT$ at $T=T_c$ is essentially less then that for the system with Cooper pairs (high carrier density and positive chemical potential $\mu\gg T_c$). It is found that in magnetic field satisfying the quantum limit criterium the system is characterized by non-trivial inhomogeneuos order parameter which can exist at rather high temperatures.

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