Work

Critical Behavior and Magnetocaloric Properties of LPSMO Nanocrystals via Landau Theory

Year: 2025

Type: article

Abstract: This study presents a computational methodology that combines the Landau theory with the Arrott–Noakes equation. Through an innovative formulation, simulations are performed to investigate the magnetic entropy change, , in a disordered ferromagnetic system. The theoretical framework is applied to analyze the critical behavior using experimental isothermal magnetization data of (La1–xPrx)0.7Sr0.3MnO3 (x = 0, 0.2, 0.4, 0.6, 0.8, and 1) nanocrystalline perovskites. Initially, the critical exponents ( and ) of these materials are determined. It is observed that the magnetic properties of the studied compounds near the phase transition deviate from the mean‐field model. These critical exponents are then used to simulate isothermal and curves.

Source: Advanced Theory and Simulations

DOI: 10.1002/adts.202500092

Authors: Mohamed Hsini, Amel Haouas, Fatma Aouaini

Institutions: University of Monastir, Northern Border University, Princess Nourah bint Abdulrahman University

Language: English

Topic: Magnetic and transport properties of perovskites and related materials

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze

Funder: Princess Nourah Bint Abdulrahman University

Award: G3943658005