Preprint Article Version 1 This version is not peer-reviewed

Magnetocaloric Effect in an Antidot : The Effect of the Aharonov-Bohm Flux and Antidot Radius

Version 1 : Received: 11 October 2018 / Approved: 11 October 2018 / Online: 11 October 2018 (05:53:07 CEST)

A peer-reviewed article of this Preprint also exists.

Negrete, O.A.; Peña, F.J.; Vargas, P. Magnetocaloric Effect in an Antidot: The Effect of the Aharonov-Bohm Flux and Antidot Radius. Entropy 2018, 20, 888. Negrete, O.A.; Peña, F.J.; Vargas, P. Magnetocaloric Effect in an Antidot: The Effect of the Aharonov-Bohm Flux and Antidot Radius. Entropy 2018, 20, 888.

Journal reference: Entropy 2018, 20, 888
DOI: 10.3390/e20110888

Abstract

In this work, we report the magnetocaloric effect (MCE) in a quantum dot corresponding to an electron interacting with an antidot, under the effect of an Aharonov-Bohm flux subjected to a parabolic confinement potential. We use the Bogachek and Landman model, which additionally allows the study of quantum dots with Fock-Darwin energy levels for vanishing antidot radius and flux. We find that the Aharonov-Bohm flux (AB-flux) strongly controls the oscillatory behaviour of the MCE, thus acting as a control parameter for the cooling or heating of the magnetocaloric effect. We propose a way to detect AB-flux by measuring temperature differences.

Subject Areas

agnetocaloric effect; quantum dot; Aharonov-Bohm

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