Fe3Ga/HfO2/Fe3Ga异质结的极化磁电效应

IF 2.3 4区物理与天体物理 Q3 PHYSICS, APPLIED

Applied Physics Express Pub Date : 2023-12-01 DOI:10.35848/1882-0786/ad0db8

Zhijian He, Daifeng Zou, Qiong Yang, Tianpeng Duan, Yingjun Tan, Chihou Lei, Shuhong Xie and Yunya Liu

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引用次数: 0

摘要

Fe3Ga/HfO2/Fe3Ga异质结具有合理的晶格失配和良好的纳米级铁电性。然而，它的磁电耦合是未知的。基于第一性原理计算，我们证明了Fe3Ga/HfO2/Fe3Ga异质结中的磁电耦合是由极化引起的，不同于一般的应变介导磁电效应。通过分析态的轨道分辨密度和自旋密度来解释异质结极化诱导的磁电效应，发现Fe3Ga和HfO2之间的界面在磁电耦合中起着重要作用，为室温下产生磁电耦合提供了另一种途径。

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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Polarization-induced magnetoelectric effect in Fe3Ga/HfO2/Fe3Ga heterojunction

Fe3Ga/HfO2/Fe3Ga heterojunction possesses reasonable lattice mismatch and good ferroelectric at the nanoscale. However, its magnetoelectric coupling is unexplored. Based on the first-principles calculations, we demonstrate that the magnetoelectric coupling in Fe3Ga/HfO2/Fe3Ga heterojunction is induced by polarization, which is different from the common strain-mediated magnetoelectric effect. The polarization-induced magnetoelectric effect of heterojunction is explained by the analyses of orbital-resolved density of states and spin densities, finding that the interfaces between Fe3Ga and HfO2 play an important role in magnetoelectric coupling, offering an alternative pathway for generating magnetoelectric coupling at room temperature.

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来源期刊

Applied Physics Express 物理-物理：应用

CiteScore

4.80

自引率

8.70%

发文量

310

审稿时长

1.2 months

期刊介绍： Applied Physics Express (APEX) is a letters journal devoted solely to rapid dissemination of up-to-date and concise reports on new findings in applied physics. The motto of APEX is high scientific quality and prompt publication. APEX is a sister journal of the Japanese Journal of Applied Physics (JJAP) and is published by IOP Publishing Ltd on behalf of the Japan Society of Applied Physics (JSAP).