Observation of the magnetic entropy change in Zn doped MnFe2O4 common ceramic: Be cool being environmental friendly

被引：3

作者：

Anwar, M. S. ^{[1
,2
]}

Koo, Bon Heun ^{[2
]}

机构：

[1] Aligarh Muslim Univ, AK Tibbiya Coll, Dept Kulliyat, Aligarh 202002, Uttar Pradesh, India

[2] Changwon Natl Univ, Sch Mat Sci & Engn, Chang Won 641773, South Korea

来源：

CURRENT APPLIED PHYSICS | 2022年 / 39卷

基金：

新加坡国家研究基金会;

关键词：

Ceramic; Ferrite; Magnetocaloric effect; Cooling efficiency; MAGNETOCALORIC PROPERTIES; ZINC SUBSTITUTION; FERRITE; MICROSTRUCTURE; POWER; GD;

D O I：

10.1016/j.cap.2022.04.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the detail investigation on the magnetic and magnetocaloric behaviour of polycrystalline Mn1xZnxFe2O4 (0.0 <= x <= 0.7) ferrite. The magnetization analysis shows that the increase of Zn concentration in the samples results in decrease of saturation magnetization. The maximum magnetic entropy change |Delta S-M(max)| is evaluated through M-H isotherms measurements and takes values of 1.25, 1.11, 1.07, and 0.64 Jkg(-1)K(-1) for x = 0.0, 0.3, 0.5, and 0.7, respectively under a maximum applied magnetic field of 2.5 T. The corresponding relative cooling power (RCP) for these samples were found to be 102, 162, 96, and 89 Jkg-1 for x = 0.0, 0.3, 0.5, and 0.7, respectively. After the comparison of the obtained values of |Delta S-M(max)| and RCP with those reported earlier for the other compounds, recommend to explore such common soft ferrites based materials for magnetic refrigeration.

引用

页码：77 / 83

页数：7

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