用于磁存储器计算的反点阵

IF 3.5 2区 物理与天体物理 Q2 PHYSICS, APPLIED Applied Physics Letters Pub Date : 2024-11-26 DOI:10.1063/5.0240085
R. Allenspach, A. Bischof, R. Heller
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引用次数: 0

摘要

储能计算可以在标准 CMOS 技术之外的各种系统中实现。在这里,我们描述了一种依赖于由锑点阵组成的磁水库的方案,该方案受到了早期环形阵列实验的启发。我们证明,锑点阵可用作储磁体,其方式与环形阵列大致相同。我们描述了需要较小磁场来诱导储层中出现磁性图案的几何形状,这是将其用于储层计算的先决条件。尽管宏观磁信号在这两种储层中的表现非常相似,但这些模式的高分辨率磁成像却显示出完全不同的畴和畴壁。
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Antidot lattices for magnetic reservoir computing
Reservoir computing can be implemented in a variety of systems beyond standard CMOS technology. Here, we describe a scheme that relies on a magnetic reservoir consisting of an antidot array, motivated by earlier experiments on ring arrays. We show that antidot lattices can be used as reservoirs much in the same way as ring arrays. We describe geometries in which smaller magnetic fields are needed to induce emergent magnetic patterns in the reservoir, a prerequisite for its use in reservoir computing. High-resolution magnetic imaging of these patterns shows entirely different domains and domain walls, despite the fact that the macroscopic magnetic signal behaves very similarly in both types of reservoirs.
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来源期刊
Applied Physics Letters
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.
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