Self-Cooling Multiferroic Magnetic Devices

IF 1.6 4区物理与天体物理 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Magnetics Letters Pub Date : 2026-01-23 DOI:10.1109/LMAG.2026.3657139

Kristen Booth;Aqarib Hussain;Jacob L. Jones;Todd C. Monson

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引用次数: 0

Abstract

Increasing switching frequency reduces magnetic volume, but conventional ferrites, used from tens to hundreds of kilohertz, cannot sustain the temperature and frequency ranges demanded by current and emerging wide bandgap and ultrawide bandgap devices. This work presents a novel magnetic material architecture combining nanocrystalline magnetic material and multiferroic layers for megahertz power conversion. The high saturation flux density of nanocrystalline alloys supports miniaturization but is traditionally constrained by excessive losses above 10 kHz. A revolutionary multiferroic material with solid-state cooling via caloric materials is defined that will enable the next generation of magnetic devices for wide-bandgap-integrated designs. This letter highlights the fundamental physics behind this capability alongside early development of a finite element analysis for the multiferroic-based magnetic device using ANSYS, showing that the core achieves more uniform thermal distribution and reduces peak temperature by 9

$^{\circ }$

C compared to conventional ferrites.

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自冷多铁磁器件

增加开关频率可以减少磁体积，但传统的铁氧体，从几十到几百千赫兹，不能维持当前和新兴的宽带隙和超宽带隙器件所要求的温度和频率范围。本文提出了一种结合纳米晶磁性材料和多铁质层的新型磁性材料结构，用于兆赫功率转换。纳米晶合金的高饱和磁通密度支持小型化，但传统上受10 kHz以上过大损耗的限制。一种革命性的多铁性材料，通过热材料进行固态冷却，将使下一代磁性器件能够用于宽带集成设计。这封信强调了这种能力背后的基本物理原理，以及使用ANSYS对基于多铁氧体的磁性器件进行有限元分析的早期开发，表明与传统铁氧体相比，磁芯实现了更均匀的热分布，并将峰值温度降低了9 $^{\circ}$C。

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

IEEE Magnetics Letters PHYSICS, APPLIED-

CiteScore

2.40

自引率

0.00%

发文量

期刊介绍： IEEE Magnetics Letters is a peer-reviewed, archival journal covering the physics and engineering of magnetism, magnetic materials, applied magnetics, design and application of magnetic devices, bio-magnetics, magneto-electronics, and spin electronics. IEEE Magnetics Letters publishes short, scholarly articles of substantial current interest. IEEE Magnetics Letters is a hybrid Open Access (OA) journal. For a fee, authors have the option making their articles freely available to all, including non-subscribers. OA articles are identified as Open Access.