Electric field control of RKKY coupling through solid-state ionics

IF 3.5 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2023-01-27 DOI:10.1063/5.0145144

M. Ameziane, Roy Rosenkamp, L. Flajšman, S. van Dijken, R. Mansell

引用次数: 2

Abstract

Placing a suitable spacer layer between two magnetic layers can lead to an interaction between the magnetic layers known as Ruderman–Kittel–Kasuya–Yosida (RKKY) coupling. Controlling RKKY coupling, particularly the ability to switch between ferromagnetic and antiferromagnetic coupling, would enable novel magnetic data storage devices. By combining solid-state Li ion battery technology with an out-of-plane magnetized Co/Pt-based stack coupled through a Ru interlayer, we investigate the effects of the insertion of Li ions on the magnetic properties of the stack. The RKKY coupling and its voltage dependence are measured as a function of the Ru interlayer thickness, along with the effects of repeated voltage cycling. The Li ions both change the amplitude of the RKKY coupling and its phase, leading to the ability to switch the RKKY coupling between ferromagnetic and antiferromagnetic with applied voltages.

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固态离子对RKKY耦合的电场控制

在两个磁性层之间放置合适的间隔层可以导致磁性层之间的相互作用，称为Ruderman–Kittel–Kasuya–Yosida（RKKY）耦合。控制RKKY耦合，特别是在铁磁和反铁磁耦合之间切换的能力，将使新型磁性数据存储设备成为可能。通过将固态锂离子电池技术与通过Ru夹层耦合的平面外磁化Co/Pt基堆叠相结合，我们研究了锂离子的插入对堆叠的磁性能的影响。RKKY耦合及其电压依赖性被测量为Ru层间厚度的函数，以及重复电压循环的影响。Li离子都改变了RKKY耦合的振幅及其相位，从而能够在施加电压的情况下在铁磁和反铁磁之间切换RKKY耦合法。

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

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.