Magnetism in AV3Sb5 (A = Cs, Rb, K): Complex Landscape of the Dynamical Magnetic Textures
Debjani Karmakar, Manuel Pereiro, Md. Nur Hasan, Ritadip Bharati, Johan Hellsvik, Anna Delin, Samir Kumar Pal, Anders Bergman, Shivalika Sharma, Igor Di Marco, … 展开作者
Debjani Karmakar, Manuel Pereiro, Md. Nur Hasan, Ritadip Bharati, Johan Hellsvik, Anna Delin, Samir Kumar Pal, Anders Bergman, Shivalika Sharma, Igor Di Marco, Patrik Thunstrom, Peter M. Oppeneer, Olle Eriksson
We have investigated the dynamical magnetic properties of the V-based kagome stibnite compounds by combining the ab-initio calculated magnetic parameters of a spin Hamiltonian like inter-site exchange parameters, magnetocrystalline anisotropy and site projected magnetic moments, with full-fledged simulations of atomistic spin-dynamics. Our calculations reveal that in addition to a ferromagnetic order along the [001] direction, the system hosts a complex landscape of magnetic configurations comprised of commensurate and incommensurate spin-spirals along the [010] direction. The presence of such chiral magnetic textures may be the key to solve the mystery about the origin of the experimentally observed inherent breaking of the C6 rotational symmetry- and the time-reversal symmetry.
Unconventional Magnetism: Symmetry Classification, Hybrid-parity and Unconstrained-parity Classes
Anhui Province Key Laboratory of Low-Energy Quantum Materials and Devices, High Magnetic Field Laboratory, HFIPS, Chinese Academy of Sciences（中国科学院合肥物质科学研究院）；School of Physical Science and Technology, Inner Mongolia University（内蒙古大学物理科学与技术学院）；Institute of Physical Science and Information Technology, Anhui University（安徽大学物理与材料科学学院）；Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences（中国科学院合肥物质科学研究院固体物理研究所）；Research Center for Quantum Physics and Technologies, Inner Mongolia University（内蒙古大学量子物理与技术研究中心）；Inner Mongolia Key Laboratory of Microscale Physics and Atomic Manufacturing, Inner Mongolia University（内蒙古微尺度物理与原子制造重点实验室）；Centre for Quantum Physics, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), School of Physics, Beijing Institute of Technology（北京理工大学物理学院）
Unconventional Mixed-Parity Magnetism in Rare-Earth Tetraborides
Chungnam National University（忠南国立大学）；Institute for Sciences of the Universe, Chungnam National University（忠南国立大学宇宙科学研究所）；Korea Military Academy（韩国军事学院）；Kyungpook National University（庆北国立大学）
A Strategy Toward Room Temperature Topological Hall Effect via Local Moment Magnetism
Rice University（莱斯大学）；Boston College（波士顿学院）；University of Houston（休斯顿大学）；University of Maryland, College Park（马里兰大学帕克分校）；Canadian Institute for Advanced Research（加拿大高级研究所）
Laser-written reconfigurable energy landscapes and programmable Moiré spin textures
Politecnico di Milano（米兰理工大学）；Université Grenoble Alpes, CNRS, CEA, SPINTEC（格勒诺布尔阿尔卑斯大学，法国国家科学研究中心，法国原子能和替代能源委员会，自旋电子学与铁磁共振中心）；Università di Perugia（佩鲁贾大学）；Istituto Officina dei Materiali - Consiglio Nazionale delle Ricerche (CNR-IOM)（材料研究所-意大利国家研究委员会）；New York University（纽约大学）；Politecnico of Bari（巴里理工大学）；University of Basel（巴塞尔大学）
Exchange Frustration and Topological Magnetism in Electrostatically Doped SrRuO3
Department of Physics and Astronomy & Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln（内布拉斯加大学林肯分校物理与天文学系及内布拉斯加材料与纳米科学中心）
University of Michigan（密歇根大学）；ITMO University（ITMO大学）；The University of Texas at Dallas（德克萨斯大学达拉斯分校）；Georgia Institute of Technology（佐治亚理工学院）；University of Iceland（冰岛大学）
Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences（中国科学院物理研究所，北京凝聚态物理国家实验室）；University of Chinese Academy of Sciences（中国科学院大学）；Condensed Matter Physics Data Center, Chinese Academy of Sciences（中国科学院凝聚态物理数据中心）
Southern University of Science and Technology (SUSTech)（南方科技大学）；Quantum Science Center of Guangdong–Hong Kong–Macao Greater Bay Area (Guangdong)（粤港澳大湾区量子科学中心）
Intra-unit-cell resolved intertwining of multi-$Q$ charge and spin textures in an itinerant skyrmion magnet
RIKEN Center for Emergent Matter Science（理化学研究所物质结构科学研究中心）；Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo（东京大学应用物理系及量子相电子研究中心）；Institute for Solid State Physics, University of Tokyo（东京大学固体物理研究所）；Research Center for Advanced Science and Technology, University of Tokyo（东京大学先进科学技术研究中心）
Pairing-induced Momentum-space Magnetism and Its Implication In Optical Anomalous Hall Effect In Chiral Superconductors
CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, and Department of Physics, University of Science and Technology of China（中国科学院强耦合量子物质物理重点实验室，中国科学技术大学物理学院）；ICQD, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China（中国科学院微观量子器件研究所，中国科学技术大学合肥微尺度物质科学国家研究中心）；Hefei National Laboratory, University of Science and Technology of China（中国科学技术大学合肥国家实验室）
Ferroelectricity controlled chiral spin textures and anomalous valley Hall effect in the Janus magnet-based multiferroic heterostructure
实现自旋拓扑织构的有效操纵和显式识别是使自旋织构成为高存储密度、高数据处理速度和低能耗自旋电子器件信息载体的两个关键因素。与传统的磁调控方法相比，电场调控磁调控是一种无耗散的方法。然而，由于磁场不直接破坏时间反演对称性，磁化强度对电场不敏感，并且由于外部涨落引起的漂移，拓扑磁准粒子的分布很难保持，这可能导致准粒子与均匀磁背景之间的模糊识别。在这里，我们表明，在Janus磁铁为基础的多铁性异质结构LaClBr/In 2 Se 3的异常谷霍尔效应所产生的横向电压，可以很容易地和明确地区分电极化的强度驱动的skyrmionic和均匀铁磁态。我们的工作提供了一种替代方法的数据编码，其中数据编码结合拓扑自旋纹理与可检测的电子输运。
