Magneto-Elastic Coupling in a Sinusoidal Modulated Magnet Cr_(2)GaN

作     者：Hui-Can Mao Yu-Feng Li Qing-Yong Ren Mi-Hai Chu Helen E.Maynard-Casely Franz Demmel Devashibhai Adroja Hai-Hu Wen Yin-Guo Xiao Hui-Qian Luo 毛慧灿;李玉峰;任清勇;褚密海;Helen E.Maynard-Casely;Franz Demmel;Devashibhai Adroja;闻海虎;肖荫果;罗会仟

作者机构：Beijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing 100190China University of Chinese Academy of SciencesBeijing 100049China National Laboratory of Solid State Microstructures and Department of PhysicsCollaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093China Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Spallation Neutron Source Science CenterDongguan 523803China School of Advanced MaterialsShenzhen Graduate SchoolPeking UniversityShenzhen 518055China Australian Centre for Neutron ScatteringAustralian Nuclear Science and Technology OrganisationLucas Heights NSW-2232Australia ISIS FacilityRutherford Appleton LaboratoryChiltonDidcot Oxon OX110QXUnited Kingdom Songshan Lake Materials LaboratoryDongguan 523808China 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2022年第39卷第9期

页      面：72-75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 Natural Science Foundation of China(Grant Nos.11822411,12061130200,11961160699,11974392,and 52101236) the National Key Research and Development Program of China(Grant Nos.2018YFA0704200,2017YFA0303100,and 2020YFA0406003) the Strategic Priority Research Program(B)of the CAS(GrantNo.XDB25000000) K.C.Wong Education Foundation(Grant No.GJTD-2020-01) the Youth Innovation Promotion Association of the CAS(Grant No.Y202001) Beijing Natural Science Foundation(Grant No.JQ19002) the Newton Advanced Fellowship funding from the Royal Society of UK(Grant No.NAFR1201248) 

主　　题：magnetic Elastic Coupling 

摘      要：We use neutron powder diffraction to investigate the magnetic and crystalline structure of Cr_(2)GaN.A magnetic phase transition is identified at T≈170 K,whereas no trace of structural transition is observed down to 6 *** Rietveld refinement with irreducible representations,the spin configuration of Cr ions in Cr_(2)GaN is depicted as an incommensurate sinusoidal modulated structure characterized by a propagating vector k=(0.365,0.365,0).Upon warming up to the paramagnetic state,the magnetic order parameter closely resembles to the temperature dependence of c-axis lattice parameter,suggesting strong magneto-elastic coupling in this ***,Cr_(2)Ga N provides a potential platform for exploration of magnetically tuned properties such as magnetoelectric,magnetostrictive and magnetocaloric effects,as well as their applications.