Critical properties of a ferromagnetic CrI3 Ising bilayer

A. Boukhal, Y. Chegrane, N. Hachem () and M. El Bouziani
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A. Boukhal: Chouaïb Doukkali University
Y. Chegrane: Chouaïb Doukkali University
N. Hachem: Chouaïb Doukkali University
M. El Bouziani: Chouaïb Doukkali University

The European Physical Journal B: Condensed Matter and Complex Systems, 2025, vol. 98, issue 9, 1-9

Abstract: Abstract The critical and magnetic properties of a ferromagnetic $$\hbox {CrI}_3$$ CrI 3 bilayer were studied using the mean-field approximation within the spin-3/2 Ising model. The impacts of key system parameters, notably the interlayer exchange interaction $$J_{int}$$ J int and the crystal field D, on the magnetization and susceptibility of the system were outlined and discussed. In two different planes ( $$J_{int}$$ J int , temperature) and (D, temperature), two phase diagrams were plotted and analyzed. Interesting findings were reported in this study, namely, first- and second-order phase transitions and critical end-points. Under specific physical conditions, we assessed how the blocking temperature is influenced by the crystal field and the external magnetic field. Graphic Abstract

Date: 2025
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DOI: 10.1140/epjb/s10051-025-01043-9

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