Electric field tuning of magnetocaloric effect in FeRh0.96Pd0.04/PMN-PT composite near room temperature

被引：39
|
作者：
Hu, Q. B. [1 ,2 ,3 ,4 ]
Li, J. [1 ,2 ,3 ]
Wang, C. C. [1 ,2 ,3 ]
Zhou, Z. J. [1 ,2 ,3 ]
Cao, Q. Q. [1 ,2 ,3 ]
Zhou, T. J. [5 ]
Wang, D. H. [1 ,2 ,3 ]
Du, Y. W. [1 ,2 ,3 ]
机构：
[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
[2] Nanjing Univ, Jiangsu Prov Key Lab Nanotechnol, Nanjing 210093, Jiangsu, Peoples R China
[3] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
[4] Luoyang Inst Sci & Teleol, Dept Math & Sci, Luoyang 471023, Peoples R China
[5] ASTAR, Data Storage Inst, 5 Engn Dr 1, Singapore 117608, Singapore
来源：
APPLIED PHYSICS LETTERS | 2017年 / 110卷 / 22期
基金：
中国国家自然科学基金;
关键词：
PRESSURE-DEPENDENCE; FERH; MULTIFERROICS; RESISTIVITY; TRANSITIONS; STRAIN;
D O I：
10.1063/1.4984901
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The first-order magnetic phase transition alloy, FeRh, exhibits a large magnetocaloric effect well above room temperature and works in a limited refrigeration temperature region, which hinders its application to some extent. In the present work, we report a remarkable electric-control magnetocaloric effect in the FeRh0.96Pd0.04/PMN-PT composite near room temperature through strain-mediated magnetoelectric coupling. By applying an electric field of 8 kV/cm, the metamagnetic phase transition temperature of the FeRh0.96Pd0.04 film shifts from 300 to 325 K. As a result, the refrigeration temperature region is broadened from 35 to 47 K. These results indicate that applying multiple driving fields is an effective method for tuning the magnetocaloric effect. Published by AIP Publishing.
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页数：5
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