Proximity-induced spin-polarized magnetocaloric effect in transition metal dichalcogenides

نویسندگان

چکیده

We explore proximity-induced magnetocaloric effect (MCE) on transition metal dichalcogenides, focusing a two-dimensional (2D) MoTe$_2$ monolayer deposited ferromagnetic semiconductor EuO substrate connected to heat source. model this heterostructure using tight-binding model, incorporating exchange and Rashba fields induced by proximity EuO, including temperature through Fermi statistics. The MCE is the 2D layer due substrate, revealing large spin-polarized entropy changes for energies out of band gap MoTe$_2$-EuO system. By gating chemical potential, can be tuned produce heating spin up cooling down across $K$ $K'$ valley splitting in valence band, whereas either heats or cools both spins conduction band. field enhances zone while decreasing it bands. field-induced could useful tunable thermal responses magnetic proximitized materials.

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ژورنال

عنوان ژورنال: Physical review

سال: 2022

ISSN: ['0556-2813', '1538-4497', '1089-490X']

DOI: https://doi.org/10.1103/physrevb.105.014443