SPINCURRENT: Domain Walls and Spin-Polarised Currents

该项目是ESF FoNE合作研究项目的一部分，该项目旨在解决与铁磁畴壁（DW）相关的主题，如果研究自旋电流诱导的磁化反转，用电流操纵自旋和铁磁半导体（FS）纳米结构。具体而言，该项目的目标是：-了解畴壁如何被流过它的自旋极化电流移动，例如通过自旋转移扭矩和动量转移力;-利用这种理解找到候选材料和样品几何形状，使这种效应适合技术开发;- 为了理解纳米尺度结构中的畴壁如何散射穿过它的自旋极化载流子，并评估这些效应对应用的有用性。我们将在传统的磁性金属和铁磁半导体中研究这些现象。我们的愿景是提供一个世界级的科学计划，从实验和理论角度深入了解磁畴壁和自旋极化电流之间相互作用的物理过程，这是重要技术应用的基础。

This project is part of ESF FoNE collaborative research project which aims to address topics relating to ferromagnetic domain walls (DWs) if the studies of spin-current-induced magnetization reversal, manipulation of spins with current, and ferromagnetic semiconductor (FS) nanostructures. Specifically, aims in this project are:- To gain understanding of how a domain wall is moved by a spin-polarised current flowing through it, e.g. by spin-transfer torques and momentum transfer forces;- To exploit this understanding to find candidate materials and sample geometries that would make this effect suitable for technological exploitation;- To gain understanding of how a domain wall in a nm-scale structure scatters spin-polarised carriers passing through it, and assessing the usefulness of these effects for applications. We will study these phenomena in both conventional magnetic metals and ferromagnetic semiconductors. Our vision is to deliver a world-class scientific programme that gains a thorough understanding, from both experimental and theoretical viewpoints, of the physical processes that are involved in the interactions between magnetic domain walls and spin-polarised currents, which underpin important technological applications.