论文标题

测量超薄磁性膜中的界面dzyaloshinskii-moriya相互作用

Measuring interfacial Dzyaloshinskii-Moriya interaction in ultra-thin magnetic films

论文作者

Kuepferling, Michaela, Casiraghi, Arianna, Soares, Gabriel, Durin, Gianfranco, Garcia-Sanchez, Felipe, Chen, Liu, Back, Christian H., Marrows, Christopher H., Tacchi, Silvia, Carlotti, Giovanni

论文摘要

Dzyaloshinskii-Moriya的相互作用(DMI)是手性磁性的起源之一,目前在研究社区中引起了关注,重点是应用磁性和纺纱剂。对于将来的应用,对其强度的准确测量是必不可少的。在这里,我们介绍了测量Dzyaloshinskii-Moriya相互作用(DMI常数$ d $)的最先进的综述,重点是从两种材料(即种族间DMI)之间的界面引起的相互作用的系统。我们概述了实验技术及其理论背景和DMI常数定量的模型。测量技术分为三类:a)基于域壁的测量值,b)基于自旋波的测量和c)基于自旋轨道扭矩的测量。我们分析了每种方法的优点和缺点,并比较不同接口处的$ d $值。该评论旨在更好地了解不同技术对各种堆栈的适用性以及文献价值观之间明显分歧的起源。

The Dzyaloshinskii-Moriya interaction (DMI), being one of the origins of chiral magnetism, is currently attracting considerable attention in the research community focusing on applied magnetism and spintronics. For future applications, an accurate measurement of its strength is indispensable. Here we present a review of the state-of-the-art of measuring the coefficient of the Dzyaloshinskii-Moriya interaction, the DMI constant $D$, focusing on systems where the interaction arises from the interface between two materials (i.e. interfacial DMI). We give an overview of the experimental techniques as well as their theoretical background and models for the quantification of the DMI constant. The measurement techniques are divided into three categories: a) domain wall-based measurements, b) spin wave-based measurements and c) spin-orbit torque-based measurements. We analyze the advantages and disadvantages of each method and compare $D$ values at different interfaces. The review aims to obtain a better understanding of the applicability of the different techniques to various stacks and of the origin of apparent disagreements among literature values.

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