Magnetocaloric effect in multiferroic Y-type hexaferrite Ba0.5Sr1.5Zn2(Fe0.92Al0.08)12O22

被引：22

作者：

Xu, Wenfei ^{[1
]}

Yang, Jing ^{[1
]}

Shen, Yude ^{[1
]}

Bai, Wei ^{[1
]}

Zhang, Yuanyuan ^{[1
]}

Liu, Jia ^{[1
]}

Tang, Kai ^{[1
]}

Wang, Zhi ^{[1
]}

Duan, Chun-Gang ^{[1
]}

Tang, Xiaodong ^{[1
,2
]}

Chu, Junhao ^{[1
]}

机构：

[1] E China Normal Univ, Dept Elect Engn, Key Lab Polar Mat & Devices, Minist Educ, Shanghai 200241, Peoples R China

[2] Chinese Acad Sci, Key Lab Inorgan Funct Mat & Devices, Shanghai Inst Ceram, Shanghai 200050, Peoples R China

来源：

AIP ADVANCES | 2014年 / 4卷 / 06期

基金：

上海市自然科学基金;

关键词：

MAGNETORESISTANCE;

D O I：

10.1063/1.4883235

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Magnetocaloric effect is investigated in multiferroic Ba0.5Sr1.5Zn2(Fe0.92Al0.08)(12)O-22 ceramic with Y-type hexagonal system. Three magnetic transitions, from alternating longitudinal conical to mixed conical at similar to 240 K, to ferrimagnetic at similar to 297 K, further to paramagnetic at similar to 702 K, are unambiguously determined. Furthermore, obvious MCE is shown, and the maximum values of the magnetic entropy change and relative cooling power are evaluated to be 1.53 JKg(-1)K(-1) and 280 JKg(-1) for a field change of 7 T, respectively. In addition, inverse MCE is also observed, which might be associated with the first-order magnetic phase transition between two incommensurate longitudinal conical phases. (C) 2014 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.

引用

页数：7