将磁斯格明子和反斯格明子通过磁布洛赫点四极子相连

作     者：汤进 吴耀东 蒋佳良 孔令尧 刘威 王守国 田明亮 杜海峰 Jin Tang;Yaodong Wu;Jialiang Jiang;Lingyao Kong;Wei Liu;Shouguo Wang;Mingliang Tian;Haifeng Du

作者机构：School of Physics and Optoelectronic EngineeringAnhui UniversityHefei 230601China Anhui Province Key Laboratory of Condensed Matter Physics at Extreme ConditionsHigh Magnetic Field LaboratoryHefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China Information Materials and Intelligent Sensing Laboratory of Anhui ProvinceInstitutes of Physical Science and Information TechnologyAnhui UniversityHefei 230601China Anhui Key Laboratory of Magnetic Functional Materials and DevicesSchool of Materials Science and EngineeringAnhui UniversityHefei 230601China 

出 版 物：《Science Bulletin》 (科学通报（英文版）)

年 卷 期：2023年第68卷第23期

页      面：2919-2923,M0004页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 0702[理学-物理学] 

基　　金：supported by the National Key R&D Program of China(2022YFA1403603) the National Natural Science Foundation of China(12174396,12104123,1197402,12204006,and 12241406) the National Natural Science Funds for Distinguished Young Scholar(52325105) Anhui Provincial Natural Science Foundation(2308085Y32 and 2108085QA21) Natural Science Project of Colleges and Universities in Anhui Province(2022AH030011) the Strategic Priority Research Program of Chinese Academy of Sciences(XDB33030100) CAS Project for Young Scientists in Basic Research(YSBR-084) Systematic Fundamental Research Program Leveraging Major Scientific and Technological Infrastructure,Chinese Academy of Sciences(JZHKYPT-2021-08) 

主　　题：布洛赫 四极子 磁电特性 磁结构 管状结构 观测手段 厚度方向 

摘      要：类似于粒子-反粒子,斯格明子与反斯格明子具有相反的拓扑序参量.斯格明子-反斯格明子耦合态具有特殊的拓扑磁电特性,例如霍尔天平动力学,可以用来开发赛道存储等新型拓扑自旋电子学器件.本文结合理论计算与实空间观测手段,在一类焦点材料S_(4)对称FeNiPdP中报道了一种新型三维斯格明子-反斯格明子耦合态.通过磁布洛赫点四极子,斯格明子与反斯格明子能在厚度方向上缝合并堆垛在一起形成稳定的三维管状结构.作者提出了一种高效分辨斯格明子-反斯格明子管和斯格明子管的判据,澄清了潜在的磁结构分辨疑云,重新定义了该系列材料的应用前景.研究结果建立了S_(4)对称斯格明子材料的完整三维磁结构模型,提供了一种斯格明子-反斯格明子耦合新方案,将有力推动拓扑磁性理论的发展和拓扑自旋电子学器件的构筑.