Magnetic, magnetocaloric and thermoelectric properties of the intermetallic LaMn2Si2 compound: a theoretical study

被引：2

作者：

Bazine, W. ^{[1
]}

Tahiri, N. ^{[1
]}

El Bounagui, O. ^{[1
]}

Ez-Zahraouy, H. ^{[1
]}

机构：

[1] Mohammed V Univ Rabat, Fac Sci, Lab Condensed Matter & Interdisciplinary Sci, Rabat, Morocco

来源：

PHASE TRANSITIONS | 2022年 / 95卷 / 05期

关键词：

Magnetocaloric effect; magnetic entropy change; relative cooling power; Monte Carlo simulations; intermetallic LaMn2Si2 compound; PHASE-TRANSITION;

D O I：

10.1080/01411594.2022.2054808

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The deficiency of materials with coexisting transport and magnetocaloric effect has prevented the development of intermetallic-based magnetic refrigeration applications. Therefore, intermetallic alloys are non-toxic, inexpensive, and low density. The presents work investigates the magnetic, magnetocaloric, and thermoelectric properties of the intermetallic LaMn2Si2 compound by using the first-principles calculations and Monte Carlo simulations. From the Ab initio calculation, the exchange coupling and anisotropy interactions are calculated. Also, the magnetic and magnetocaloric properties are determined using Monte Carlo simulations. It is found that the intermetallic LaMn2Si2 compound exhibits a second-order ferromagnetic-paramagnetic phase transition around T-C similar to 319K, this value of temperature is in good agreement with the experimental value. Finally, the thermoelectric properties are discussed. Our results improve that this material is applicable for magnetic refrigeration at Curie temperature.

引用

页码：387 / 397

页数：11

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