Proximity-induced magnetism, electrodynamics, and impurites in topological insulators and Weyl semimetals

拓扑绝缘体和韦尔半金属中的邻近感应磁力、电动力学和杂质

基本信息

项目摘要

Due its unique properties three-dimensional topological insulators (TIs) and Weyl semimetals (WSs) have generated a lot of interest in recent years because of the combination of their peculiarproperties and experimental accessibility. Most importantly, they are likely to play a major role as component materials in different types of heterostructures. In particular, proximity effect to different types of ordered media, especially magnetic and superconducting materials, provides an avenue to several interesting novel physical effects that may lead to the development of new spin-based electronic components.Our overall goal is to better understand the magnetic properties and the electron-electron interaction in the strong three-dimensional topological insulators and Weyl semimetals. It is well established that effective one-particle theories are successful in predicting the main features of the band structure of these systems. Nevertheless, it becomes increasingly evident that many-body effects yielding unusual magnetic properties are present and could play an important role.Our main objective is to study magnetization dynamics, phase transitions, and spin Josephson effect due to proximity-inducedmagnetic (ferromagnetic and antiferromagnetic) symmetry breaking in heterostructures, which involve topological insulators and/or Weyl semimetal. The main focus willbe on bilayer and trilayer structures with room temperature proximity-induced magnetism, which have been recently realized experimentally.Our further goal is to investigate the role of magnetic and non-magnetic impurities and their interaction with surface and bulk states in TIs and WSs, resulting in the non-trivial quasiparticle intereference patterns of the electronic wave functions. The special emphasis will be put on the study of the presumably topological Kondo insulator, SmB6, and Weyl semimetals based on the pyrochlore band structure with broken time-reversal symmetry.
由于其独特的特性三维拓扑绝缘子(TIS)和Weyl Semimetals(WSS)在近年来引起了很大的兴趣,因为它们的特殊性杂物和实验性可访问性结合在一起。 最重要的是,它们可能在不同类型的异质结构中作为组件材料发挥重要作用。特别是,与不同类型的有序培养基,尤其是磁性和超导材料的接近效应为几种有趣的新型物理效应提供了途径,这些效果可能导致新的基于旋转的电子成分的发展。您的总体目标是更好地了解强大的三维拓扑拓扑拓扑器和WEYL半晶体中的磁性和电子电子相互作用。众所周知,有效的单粒子理论成功地预测了这些系统的频带结构的主要特征。然而,越来越明显的是,多体效应产生了异常的磁性能,并且可能起重要作用。我们的主要目标是研究磁化动态,相变和旋转约瑟夫森效应,这是由于接近诱导的磁性(Ferromagnetic(Ferromagnetic and Fermagnetic and antromagnetic and anterformagnetic)在杂种中的交配或反对者造成的杂物,而涉及杂物或涉及杂物的效应,该效应是涉及或涉及杂物的情况。 The main focus willbe on bilayer and trilayer structures with room temperature proximity-induced magnetism, which have been recently realized experimentally.Our further goal is to investigate the role of magnetic and non-magnetic impurities and their interaction with surface and bulk states in TIs and WSs, resulting in the non-trivial quasiparticle intereference patterns of the electronic wave functions.特殊的重点将基于pyrochlore带结构的拓扑结膜绝缘子SMB6和Weyl半法进行研究,并具有损坏的时间反转对称性。

项目成果

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Professor Dr. Ilya Eremin其他文献

Professor Dr. Ilya Eremin的其他文献

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{{ truncateString('Professor Dr. Ilya Eremin', 18)}}的其他基金

Proximity-induced effects and novel functionalities in superconducting/ferromagnetic heterostructures with magnetic skyrmions
具有磁性斯格明子的超导/铁磁异质结构中的邻近感应效应和新功能
  • 批准号:
    403511192
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Short-Time Dynamics and Electron-Lattice Interaction in Iron Based Superconductors
铁基超导体中的短时动力学和电子晶格相互作用
  • 批准号:
    284271498
  • 财政年份:
    2015
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Magnetic fluctuations and nematic order in iron-based superconductors: Stability, short-time dynamics, transport and orbital correlations
铁基超导体中的磁涨落和向列序:稳定性、短时动力学、输运和轨道相关性
  • 批准号:
    237703666
  • 财政年份:
    2013
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes
Emergent multicomponent phases and odd parity in unconventional superconductors
非常规超导体中的新兴多组分相和奇宇称
  • 批准号:
    449367852
  • 财政年份:
  • 资助金额:
    --
  • 项目类别:
    Research Grants

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