Pulsed field magnetization experiments extend the typical metamagnetic staircase of CuFeO2 up to 58 T to reveal an additional first order phase transition at high field for both the parallel and perpendicular field configuration. Virtually complete isotropic behavior is retrieved only above this transition, indicating the high-field recovery of the undistorted triangular lattice. A consistent phenomenological rationalization for the field dependence and metamagnetism crossover of the system is provided, demonstrating the importance of both spin-phonon coupling and a small field-dependent easy-axis anisotropy in accurately describing the magnetization process of CuFeO2.
Field-driven successive phase transitions in quasi-two-dimensional frustrated antiferromagnet Ba$_2$CoTeO$_6$ and highly degenerate classical ground states
Magnetic properties of a buckled honeycomb lattice antiferromagnet
Indian Institute of Technology Madras（印度马德拉斯理工学院）；Quantum Centre of Excellence for Diamond and Emergent Materials, Indian Institute of Technology Madras（印度马德拉斯理工学院量子卓越中心（钻石与新兴材料））
Magnetic Transitions in the Chiral Armchair-Kagome System Mn$_2$Sb$_2$O$_7$
受抑磁体中的相互作用之间的竞争允许各种各样的新基态，通常表现出涌现的物理和独特的激发。扩展可供研究的晶格套件增加了我们发现奇异物理的机会。Mn $_2$ Sb $_2$ O $_7$以手性kagome基结构形成，其中第四个成员被添加到kagome平面三角形以形成扶手椅单元并连接相邻的kagome平面。这种结构基序可以被看作是可果美网络的三角形和烧绿石晶格中的四面体之间的中间体。Mn $_2$ Sb $_2$ O $_7$在11.1和14.2 K时表现出两种不同的磁性相变，其中至少一种具有弱铁磁成分。磁传播矢量不改变，通过较低的过渡，建议变磁过渡或过渡涉及多个组件的序参量。虽然以前报道的$P3_121$空间群，锰$_2$锑$_2$ O $_7$实际上结晶在$P2$，这使得铁电性，我们表现出明确的证据表明磁电耦合指示多铁性秩序。准二维“扶手椅-kagome”晶格提供了一个很有前途的平台，用于探测手征磁性和高阻挫系统的维数效应。
Electric-field-tuned consecutive topological phase transitions between distinct correlated insulators in moire MoTe2/WSe2 heterobilayer
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，人工结构与控制教育部重点实验室）；School of Applied and Engineering Physics, Cornell University（康奈尔大学应用与工程物理学院）；Departments of Physics and Applied Physics, Stanford University（斯坦福大学物理与应用物理系）；National Institute for Materials Science（日本物质材料研究机构）；SLAC National Accelerator Laboratory（斯坦福直线加速器国家实验室）；Tsung-Dao Lee Institute, Shanghai Jiao Tong University（上海交通大学李政道研究所）；Laboratory of Atomic and Solid State Physics, Cornell University（康奈尔大学原子与固态物理实验室）；Kavli Institute at Cornell for Nanoscale Science（康奈尔大学卡弗里纳米科学研究所）；Max Planck Institute for the Structure and Dynamics of Matter（德国马普物质结构与动力学研究所）
