SPINCURRENT: Domain Walls and Spin-Polarised Currents

自旋电流：畴壁和自旋极化电流

• 批准号: EP/D06290X/1
• 负责人: Vladimir Falko
• 金额: $ 9.31万
• 依托单位: Lancaster University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2006
• 资助国家: 英国
• 起止时间: 2006 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FD06290X%2F1
• 关键词: SPINCURRENT; Domain; Walls; Spin; Polarised

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.

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域壁(DWS)相关的主题，如自旋电流诱导的磁化反转、带电流的自旋操纵以及铁磁半导体(FS)纳米结构的研究。具体地说，该项目的目标是：-了解流动的自旋极化电流是如何通过它移动的，例如通过自旋转移扭矩和动量转移力；-利用这一了解来寻找候选材料和样本几何图形，使这种效应适合于技术开发；-了解纳米级结构中的磁畴壁如何散射通过它的自旋极化载流子，并评估这些效应对应用的有用性。我们将研究传统磁性金属和铁磁半导体中的这些现象。我们的愿景是提供一个世界级的科学计划，从实验和理论两个角度彻底了解磁场壁和自旋极化电流之间的相互作用所涉及的物理过程，这是重要技术应用的基础。

项目成果

Visibility of graphene flakes on a dielectric substrate

• DOI: 10.1063/1.2768625
• 发表时间: 2007-08-06
• 期刊: APPLIED PHYSICS LETTERS
• 影响因子: 4
• 作者: Abergel, D. S. L.;Russell, A.;Fal'ko, Vladimir I.
• 通讯作者: Fal'ko, Vladimir I.

Thermally excited spin current and giant magnetothermopower in metals with embedded ferromagnetic nanoclusters

• DOI: 10.1103/physrevb.74.132403
• 发表时间: 2006-10-01
• 期刊: PHYSICAL REVIEW B
• 影响因子: 3.7
• 作者: Tsyplyatyev, Oleksandr;Kashuba, Oleksiy;Fal'ko, Vladimir I.
• 通讯作者: Fal'ko, Vladimir I.

Power dependence of the photocurrent lineshape in a semiconductor quantum dot

半导体量子点中光电流线形的功率依赖性

• DOI: 10.1063/1.2803850
• 发表时间: 2007
• 期刊: Applied Physics Letters
• 影响因子: 4
• 作者: Russell A