Local interactions of hot electron-spins with nanomagnets studied by spin-polarized scanning field emission microscopy and spectroscopy

通过自旋偏振扫描场发射显微镜和光谱学研究热电子自旋与纳米磁体的局部相互作用

• 批准号: 263086890
• 负责人: Professorin Dr. Anika Schlenhoff
• 金额: --
• 依托单位: Physikalisches Institut
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/263086890?language=en
• 关键词: Local; interactions; hot; electron; spins

The project aims at the experimental study of the interactions of hot-electron spins with magnets on the atomic scale. Unoccupied electronic resonance states above the surface of magnetic nanostructures are used as model systems, focusing on the investigation of local phenomena. By means of spin-polarized scanning field emission microscopy and spectroscopy spin-polarized electrons are injected into these states, resulting in a two-dimensional hot-electron gas in front of the surface. Understanding its local interaction with magnetic surface defects, like step edges and nano-islands, or with laterally varying surface magnetization structures is in the focus of this project.

该项目的目的是在原子尺度上对热电子自旋与磁体的相互作用进行实验研究。磁性纳米结构表面上的非磁性铜电子共振态被用作模型系统，专注于局部现象的研究。通过自旋极化扫描场发射显微镜和光谱自旋极化电子注入到这些状态，导致在表面前面的二维热电子气。了解其与磁性表面缺陷（如台阶边缘和纳米岛）或横向变化的表面磁化结构的局部相互作用是该项目的重点。

项目成果

Vacuum Resonance States as Atomic-Scale Probes of Noncollinear Surface Magnetism.

真空共振态作为非共线表面磁性的原子尺度探针

• DOI: 10.1103/physrevlett.123.087202
• 发表时间: 2019
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: A. Schlenhoff;S. Kovarik;S. Krause;R. Wiesendanger
• 通讯作者: R. Wiesendanger

Step-Edge-Induced Anisotropic Chiral Spin Coupling in Ultrathin Magnetic Films.

超薄磁性薄膜中阶梯边缘诱导的各向异性手性自旋耦合

• DOI: 10.1103/physrevlett.123.037201
• 发表时间: 2019
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: A. Schlenhoff;S. Krause;R. Wiesendanger
• 通讯作者: R. Wiesendanger

Real-space imaging of atomic-scale spin textures at nanometer distances

纳米距离原子级自旋纹理的实空间成像

• DOI: 10.1063/1.5145363
• 发表时间: 2020
• 期刊: Applied Physics Letters
• 影响因子: 4
• 作者: A. Schlenhoff;S. Kovarik;S. Krause;R. Wiesendanger
• 通讯作者: R. Wiesendanger