Multicaloric response tuned by electric field in cylindrical MnAs/PZT magnetoelectric composite

IF 2.7 3区物理与天体物理 Q2 PHYSICS, APPLIED

Journal of Applied Physics Pub Date : 2024-09-17 DOI:10.1063/5.0231720

Abdulkarim A. Amirov, Maksim A. Koliushenkov, Abdula A. Mukhuchev, Dibir M. Yusupov, Valeriya V. Govorina, Dmitriy S. Neznakhin, Gennady A. Govor, Akhmed M. Aliev

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引用次数: 0

Abstract

The possibility observation of the electric field controlled multicaloric response through quasi-isostatic compression as a result of the converse piezoelectric effect was demonstrated on the cylindrical type magnetoelectric composite MnAs/PZT. It was shown that an electric voltage of 100 V corresponding to an electric field of E ∼0.3 kV/mm applied to the walls of the piezoelectric component PZT of the MnAs/PZT composite contributes to an increase in the maximum adiabatic temperature change by 0.2 K in the temperature range of the magnetostructural phase transition of MnAs ∼317 K at a magnetic field change of 1.8 T. Numerical analysis using the finite element method has shown that an electric field voltage of 100 V is capable of creating a quasi-isostatic mechanical stress in the region inside a cylindrical PZT tube of ∼3 MPa. Moreover, in the region of weak pressures up to 10 MPa, the contribution to the total adiabatic temperature change from piezo-mechanical compression linearly depends on the electrical voltage that can be used for control by magnetic and caloric properties of multicaloric materials.

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通过电场调节圆柱形 MnAs/PZT 磁电复合材料的多磁响应

在圆柱型磁电复合材料 MnAs/PZT 上观察到了通过准等静压产生的反向压电效应来实现电场控制多磁性响应的可能性。研究表明，在 MnAs/PZT 复合材料的压电元件 PZT 的壁上施加 100 V 的电压（对应于 E ∼ 0.3 kV/mm 的电场），可使最大绝热温度变化增加 0.使用有限元法进行的数值分析表明，100 V 的电场电压能够在圆柱形 PZT 管内部区域产生 ∼3 MPa 的准等静压机械应力。此外，在高达 10 兆帕的微弱压力区域，压电机械压缩对总绝热温度变化的贡献与电场电压成线性关系，可用于控制多热体材料的磁性和热量特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Applied Physics 物理-物理：应用

CiteScore

5.40

自引率

9.40%

发文量

1534

审稿时长

2.3 months

期刊介绍： The Journal of Applied Physics (JAP) is an influential international journal publishing significant new experimental and theoretical results of applied physics research. Topics covered in JAP are diverse and reflect the most current applied physics research, including: Dielectrics, ferroelectrics, and multiferroics- Electrical discharges, plasmas, and plasma-surface interactions- Emerging, interdisciplinary, and other fields of applied physics- Magnetism, spintronics, and superconductivity- Organic-Inorganic systems, including organic electronics- Photonics, plasmonics, photovoltaics, lasers, optical materials, and phenomena- Physics of devices and sensors- Physics of materials, including electrical, thermal, mechanical and other properties- Physics of matter under extreme conditions- Physics of nanoscale and low-dimensional systems, including atomic and quantum phenomena- Physics of semiconductors- Soft matter, fluids, and biophysics- Thin films, interfaces, and surfaces