Glassy magnetic ground state in layered compound MnSb_(2)Te_(4)

作     者：Hao Li Yaoxin Li Yukun Lian Weiwei Xie Ling Chen Jinsong Zhang Yang Wu Shoushan Fan 李昊;李耀鑫;连宇坤;谢韦伟;陈玲;张金松;吴扬;范守善

作者机构：School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Department of Mechanical EngineeringTsinghua UniversityBeijing 100084China State Key Laboratory of Low Dimensional Quantum Physics and Department of PhysicsTsinghua UniversityBeijing 100084China Beijing Key Laboratory of Energy Conversion and Storage MaterialsCollege of ChemistryBeijing Normal UniversityBeijing 100875China Department of Chemistry and Chemical BiologyRutgers UniversityPiscataway 08854USA Tsinghua-Foxconn Nanotechnology Research CenterTsinghua UniversityBeijing 100084China Frontier Science Center for Quantum InformationBeijing 100084China 

出 版 物：《Science China Materials》 (中国科学（材料科学（英文版）)

年 卷 期：2022年第65卷第2期

页      面：477-485页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 070301[理学-无机化学] 0702[理学-物理学] 

基　　金：supported by the Basic Science Center Project of the National Natural Science Foundation of China(51788104) the Ministry of Science and Technology of China(2018YFA0307100) the National Natural Science Foundation of China(51991340 and 21975140) supported by the Beckman Young Investigator award 

主　　题：MnSb2Te4 crystal growth glassy magnetic ground state anomalous Hall effect 

摘      要：As a sister compound of MnBi_(2)Te_(4),the highquality MnSb_(2)Te_(4) single crystals are grown via solid-state reaction where prolonged annealing and narrow temperature window play critical roles on account of its thermal ***-crystal X-ray diffraction(SCXRD)analysis on MnSb_(2)Te_(4) illustrates a crystal model that is isostructural to MnBi_(2)Te_(4),consisting of Te-Sb-Te-Mn-Te-Sb-Te septuple layers(SLs)stacking in an ABC ***,MnSb_(2)Te_(4) reveals a more pronounced cation intermixing in comparison with MnBi_(2)Te_(4),comprising 28.9(7)%Sb antisite defects on the Mn(3a)site and 19.3(6)%Mn antisite defects on the Sb(6c)site,which may give rise to novel magnetic properties in emerging layered MnBi_(2)Te_(4)-family *** the antiferromagnetic(AFM)nature in MnBi_(2)Te_(4),MnSb_(2)Te_(4) exhibits a glassy magnetic ground state below 24 K and can be easily tuned to a ferromagnetic state under a weak applied magnetic *** magnetic hysteresis,anisotropy,and relaxation process are investigated in detail via static and dynamic magnetization ***,anomalous Hall effect as a p-type conductor is demonstrated with transport *** work grants MnSb_(2)Te_(4) a possible access to the future exploration of exotic quantum physics by removing the odd/even layer number restraint in realizing quantum transport phenomena in intrinsic AFM MnBi_(2)Te_(4)-family materials,as a result of the crossover between its magnetism and potential topology arising from the Sb-Te layer.