Detection of skyrmion phases in spintronic materials using neutron scattering

使用中子散射检测自旋电子材料中的斯格明子相

• 批准号: 401179363
• 负责人: Professor Dr. Dmytro Inosov
• 金额: --
• 依托单位: Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS)
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/401179363?language=en
• 关键词: Detection; skyrmion; phases; spintronic; materials

In the present project we plan to identify and characterize skyrmion phases in novel spintronic materials both in the bulk and in single-crystalline thin films. The primary goal of the project is to provide extensive characterization of such materials across their magnetic phase diagrams to guide the search for the most promising compounds to be used in prototype devices. Our main focus will be on compounds with lower-than-cubic symmetry, such as tetragonal Heusler allows, trigonal Co shandites, or thin films, in which additional anisotropy is introduced by the sample geometry. This should help to disentangle the roles of exchange parameters and Dzyaloshinskii-Moriya interactions on the one hand, and crystalline anisotropies and surface or interface effects on the other hand in the microscopic magnetic Hamiltonian of the system. We will also look at candidates for hosting antiferromagnetic skyrmions, which until now have not been uniquely identified.

在本项目中，我们计划识别和表征新的自旋电子材料中的skyrmion相在散装和单晶薄膜。该项目的主要目标是提供这些材料在其磁相图中的广泛表征，以指导寻找最有前途的化合物用于原型设备。我们的主要重点将是具有低于立方对称性的化合物，例如四方Heusler允许、三方Co shandites或薄膜，其中样品几何形状引入了额外的各向异性。这应该有助于解开的交换参数和Dzyaloshinskiii-Moriya相互作用的作用，一方面，和结晶各向异性和表面或界面的影响，另一方面在微观磁系统的哈密顿量。我们还将研究反铁磁天体的候选者，直到现在还没有被唯一识别出来。