Multicore memristor from electrically readable nanoscopic racetracks

IF 45.8 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Science Pub Date : 2024-10-17 DOI:10.1126/science.adh3419

Jae-Chun Jeon, Andrea Migliorini, Jiho Yoon, Jaewoo Jeong, Stuart S. P. Parkin

引用次数: 0

Abstract

The manipulation and detection of mobile domain walls in nanoscopic magnetic wires underlies the development of multibit memories. The studies of such domain walls have focused on macroscopic wires that allow for optical detection by using magneto-optic effects. In this study, we demonstrated the electrical tracking with a spatial resolution of better than 40 nm of multiple mobile domain walls in nanoscopic racetracks, using a set of anomalous Hall detectors integrated into the racetracks. Electrical time-series signals from the Hall detectors allow for the static and dynamic phase space visualization of the dynamics of a domain wall or multiple domain walls that can be described by a multicore memristor model. The domain wall dynamics and stochasticity can be controlled in racetracks even to deep submicron dimensions.

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利用电可读纳米赛道制造多核记忆晶体管

操纵和检测纳米磁力线中的移动畴壁是开发多比特存储器的基础。对这种畴壁的研究主要集中在利用磁光效应进行光学检测的宏观导线上。在这项研究中，我们利用集成在纳米赛道中的一组反常霍尔探测器，对纳米赛道中的多个移动域壁进行了空间分辨率优于 40 纳米的电学跟踪。通过霍尔检测器发出的电时序信号，可以在静态和动态相空间上可视化一个或多个畴壁的动态，这些畴壁可以用多核忆阻器模型来描述。畴壁的动态和随机性可以在赛道中进行控制，甚至可以控制到深亚微米尺寸。

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

Science 综合性期刊-综合性期刊

CiteScore

61.10

自引率

0.90%

发文量

审稿时长

2.1 months

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