Bhattacharjee Payal, Mondal Sucheta, Saha Susmita, Barman Saswati
Department of Basic Science and Humanities, Institute of Engineering & Management, Salt Lake Electronics Complex, Sector V, Salt Lake, Kolkata 700091, India.
Department of Physics, School of Natural Sciences, Shiv Nadar Institution of Eminence (Delhi NCR), Dadri UP 201314, India.
J Phys Condens Matter. 2025 Feb 3;37(13). doi: 10.1088/1361-648X/ada842.
A magnetic vortex is one of the fundamental and topologically nontrivial spin textures in condensed matter physics. Magnetic vortices are usually the ground states in geometrically restricted ferromagnets with zero magnetocrystalline anisotropy. Magnetic vortices have recently been proposed for use in a variety of spintronics applications due to their resistance to thermal perturbations, flexibility in changing core polarity, simple patterning procedure, and potential uses in magnetic data storage with substantial density, sensors for the magnetic field, devices for logic operations, and other related fields. The data storage and computing capabilities of vortex-based devices are highly integrated and energy-efficient, with low drive current requirements. Thus, a comprehensive understanding ranging from basic physics to real-world applications is necessary to realize these devices. This article provides an overview of the recent developments in our knowledge of magnetic vortices and computing and data storage technologies that are based on them. This thorough analysis aims to advance knowledge and awareness of the possibilities of vortex-based spintronic devices in modern technologies.
磁涡旋是凝聚态物理中基本且具有拓扑非平凡性的自旋纹理之一。磁涡旋通常是具有零磁晶各向异性的几何受限铁磁体中的基态。由于磁涡旋对热扰动具有抗性、改变核心极性具有灵活性、图案化过程简单，并且在高密度磁数据存储、磁场传感器、逻辑运算器件以及其他相关领域具有潜在用途，最近人们提出将其用于各种自旋电子学应用。基于涡旋的器件的数据存储和计算能力高度集成且节能，对驱动电流的要求较低。因此，要实现这些器件，有必要从基础物理到实际应用进行全面理解。本文概述了我们对磁涡旋以及基于磁涡旋的计算和数据存储技术的最新认识进展。这一深入分析旨在增进对基于涡旋的自旋电子器件在现代技术中可能性的认识和了解。
