ferh基复合材料中磁热效应的电场控制

2017 IEEE 7th International Conference Nanomaterials: Application & Properties (NAP) Pub Date : 2017-09-01 DOI:10.1109/NAP.2017.8190304

A. Amirov, V. Rodionov, V. Rodionova, A. Aliev

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引用次数: 0

摘要

在室温条件下研究了高铁基多铁复合材料的磁性、磁热和磁电性能。当磁场变化为0.62 T时，在315 K的反铁磁-铁磁相变温度附近观察到最大的磁热效应和高磁电有序。施加在复合材料上的电压使变磁跃迁在冷却时偏移约4 K，在加热时偏移约3 K。磁电效应和磁热效应的大小取决于压电PbZr0.53Ti0.47O3层的Fe48Rh52磁性层的应变/应力，这是施加电场的结果，可用于控制发热材料的磁性能。

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Electric-field control of magnetocaloric effect in FeRh-based composite

The magnetic, magnetocaloric and magnetoelectric properties of FeRh-based multiferroic composite were studied around room temperature. The maximum of magnetocaloric effect and the high magnetoelectric ordering around the antiferromagnetic-ferromagnetic phase transition temperature of 315 K for a magnetic field change of 0.62 T were observed. Applied voltage across the composite shifts the metamagnetic transition by ∼4 K in cooling and by ∼3 K in heating. The magnitudes of the magnetoelectric and magnetocaloric effects depend on the strain/stress of magnetic Fe48Rh52 layer by piezoelectric PbZr0.53Ti0.47O3 layer as results of applying electric field and can be used for controlling the magnetic properties of the caloric materials.

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2017 IEEE 7th International Conference Nanomaterials: Application & Properties (NAP)

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