Tkachov, G and Falko, Vladimir (2004) Magnetic field influence on the proximity effect in semiconductor-superconductor hybrid structures and their thermal conductance. Physical review b, 69 (9). -. ISSN 1098-0121Full text not available from this repository.
We show that a magnetic field can influence the proximity effect in NS junctions via diamagnetic screening current flowing in the superconductor. Using ballistic quasi-one-dimensional (Q1D) electron channels as an example, we show that the supercurrent flow shifts the proximity-induced minigap in the excitation spectrum of a Q1D system from the Fermi level to higher quasiparticle energies. Thermal conductance of a Q1D channel (normalized by that of a normal Q1D ballistic system) is predicted to manifest such a spectral feature as a nonmonotonic behavior at temperatures corresponding to the energy of excitation into the gapful part of the spectrum.
|Journal or Publication Title:||Physical review b|
|Subjects:||Q Science > QC Physics|
|Departments:||Faculty of Science and Technology > Physics|
|Deposited On:||24 Aug 2012 16:11|
|Last Modified:||24 Aug 2012 16:11|
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