Magnetic field effect in hybrid nanostructures

TL;DR

This paper investigates how magnetic fields influence the proximity effect in various hybrid nanostructures using a self-consistent Bogoliubov-deGennes approach within the extended Hubbard model, focusing on local density of states and pair amplitude.

Contribution

It introduces a detailed theoretical analysis of magnetic field modulation on the proximity effect in superconductor-based nanostructures, combining self-consistent calculations with multiple structure types.

Findings

Magnetic field modulates the proximity effect in nanostructures.

Local density of states varies with magnetic field strength.

Pair amplitude is affected by the magnetic environment.

Abstract

We examine the effect of the magnetic field on the proximity effect in nanostructures, self consistently using the Bogoliubov-deGennes formalism within the two dimensional extended Hubbard model. We calculate the local density of states and the pair amplitude. We study several nanostructures: superconductor - two dimensional electron gas, superconductor - ferromagnet. In these structures the magnetic field can be considered as a modulation parameter for the proximity effect.