Topological magnetism, characterized by topologically protected spin textures, offers rich physics and transformative prospects for spintronics. However, its stabilization typically demands external magnetic fields, preventing straightforward implementation. Here, we report a universal field-free approach for engineering 2D topologically-trivial spin spirals into topological magnetisms. This approach leverages twisted antiferromagnetic bilayers, where locked spin spirals in the two sublayers form spatially alternating ferromagnetic and antiferromagnetic domains upon twisting. These domains frustrate the uniform antiferromagnetic interlayer exchange, spontaneously stabilizing moire topological magnetisms without external fields. Using first-principles and atomistic spin-model simulations, we validate this approach using bilayers NiCl2 and NiBr2, as representative examples. For twisted NiCl2, we predict topological spin states tunable by the twist angle, including isolated and high-order antiferromagnetic bimerons. For twisted NiBr2, strong frustration yields trivial triple-q spin spirals, which transform into moire topological magnetism with the application of vertical compressive strain. Our findings demonstrate that topologically non-trivial spin textures can be engineered from their trivial counterparts, thus providing a new paradigm for topological spintronics
Moire-Engineered Excitonic Landscape and Phonon-Mediated Recombination in Twisted WSe2 Bilayers
Indian Institute of Technology Mandi（印度技术学院曼迪分校）；CSIR-National Physical Laboratory（印度科学工业研究理事会国家物理实验室）；Academy of Scientific and Innovative Research (AcSIR)（科学与创新研究学院）；Indian Institute of Science（印度科学学院）；National Institute of Material Science（国家物质科学研究所）
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）
Hydrostatic Pressure-enhanced correlated magnetism and Chern insulator in moir'e WSe2
State Key Laboratory of Micro-nano Engineering Science, Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University（上海交通大学物理与天文学院微纳工程科学国家重点实验室人工结构量子控制教育部重点实验室）；Tsung-Dao Lee Institute, Shanghai Jiao Tong University（上海交通大学李政道研究所）；Center for High Pressure Science & Technology Advanced Research (HPSTAR)（高压科学与技术前沿研究中心）；Max Planck Institute for Chemical Physics of Solids（马克斯·普朗克固体化学物理研究所）；Shanghai Key Laboratory of Material Frontiers Research in Extreme Environments, Institute for Shanghai Advanced Research in Physical Sciences（上海极端环境材料前沿研究重点实验室上海物理科学研究院）；Zhiyuan College, Shanghai Jiaotong University（上海交通大学致远学院）；Research Center for Electronic and Optical Materials, National Institute for Materials Science（国立材料研究所电子与光学材料研究中心）；Research Center for Materials Nanoarchitectonics, National Institute for Materials Science（国立材料研究所材料纳米架构研究中心）；Hefei National Laboratory（合肥国家实验室）；Shanghai Research Center for Quantum Sciences（上海量子科学研究与创新中心）；Department of Physics and Astronomy, University of Tennessee, Knoxville（田纳西大学诺克斯维尔分校物理与天文系）；Department of Physics, National University of Singapore（新加坡国立大学物理系）
Multi Moire Networks in Engineered Lateral Hetero-Bilayers: Programmable Phononic Reconfiguration and Second Harmonic Generation
Indian Institute of Technology Kharagpur（印度理工学院卡拉格普尔分校）；Universidade Federal de Minas Gerais（米纳斯吉拉斯联邦大学）；Aarhus University（奥胡斯大学）；Indian Institute of Technology Goa（印度理工学院果阿分校）；Indian Institute of Science Education and Research Tirupati（蒂鲁帕蒂科学教育研究所）；KIIT Deemed to be University（KIIT认定大学）
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）
Element-Specific Visualization of Layer-Parity and Twist-Dependent Magnetism in CrSBr
Carnegie Mellon University（卡内基梅隆大学）；Helmholtz-Zentrum Berlin für Materialien und Energie（柏林亥姆霍兹材料与能源中心）；Indian Institute of Technology Ropar（印度理工学院罗帕尔分校）；The University of Texas at Dallas（德克萨斯大学达拉斯分校）
研究 CrSBr 中层奇偶性和扭曲相关磁性，利用 X 射线磁圆二色性和线性二色性结合光发射电子显微镜解析其磁序，揭示纳米尺度磁结构及相关依赖性，还发现正交扭曲双层结构磁易轴的不同，为莫尔磁性开辟新途径。
Noncollinear spin textures and 90° domain walls in twisted XY magnets
WPI Advanced Institute for Materials Research (AIMR), Tohoku University（东北大学材料高等研究院）；Frontier Research Institute for Interdisciplinary Sciences, Tohoku University（东北大学前沿交叉科学研究院）；Elmore Family School of Electrical and Computer Engineering, Purdue University（普渡大学埃尔莫电气与计算机工程学院）；Department of Physics and Astronomy, Purdue University（普渡大学物理与天文学系）；Purdue Quantum Science and Engineering Institute and Birck Nanotechnology Center, Purdue University（普渡大学量子科学与工程研究所及伯克纳米技术中心）；Institute of Physics and Astronomy and Villum Centers for Hybrid Quantum Materials and devices, Aarhus University（奥胡斯大学物理与天文研究所及维伦混合量子材料与器件中心）；Institute for Materials Research (IMR), Tohoku University（东北大学材料研究所）；School of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of China（中国人民大学物理学院及光电功能材料与微纳器件北京市重点实验室）；Key Laboratory of Quantum State Construction and Manipulation (Ministry of Education), Renmin University of China（中国人民大学量子态构建与操控教育部重点实验室）；Research Center for Electronic and Optical Materials, National Institute for Materials Science（物质材料研究机构电子与光学材料研究中心）；Research Center for Materials Nanoarchitectonics, National Institute for Materials Science（物质材料研究机构材料纳米架构研究中心）
Cascade of Spin Moiré Superlattices with In-Plane Field in Triangle Lattice Semimetal EuAg$_4$Sb$_2$
Massachusetts Institute of Technology（麻省理工学院）；California Institute of Technology（加州理工学院）；Institut Laue Langevin（朗之万研究所）；Hokkaido University（北海道大学）；PSI Center for Neutron and Muon Sciences（瑞士保罗谢勒研究所中子与μ子科学中心）
Topochemically-engineered coexistence of charge and spin orders in intercalated endotaxial heterostructures
University of California, Berkeley（加州大学伯克利分校）；Molecular Foundry, Lawrence Berkeley National Laboratory（劳伦斯伯克利国家实验室分子发现中心）；Jawaharlal Nehru Centre for Advanced Scientific Research（贾瓦哈拉尔·尼赫鲁高级科学研究中心）；Max-Planck-Institute for Chemical Physics of Solids（马克斯·普朗克固体化学物理研究所）
