Evidence of spin reorientation and anharmonicity in kagome ferromagnet Fe3Sn2

doi:10.1063/5.0063090

	Evidence of spin reorientation and anharmonicity in kagome ferromagnet Fe3Sn2
	Wu, Peng 1,2; Song, Jiuhui 1,2; Yu, Xiaoxiang 3; Wang, Yihao 4; Xia, Kang 5; Hong, Bin 1,2; Zu, Lin 1,2; Du, Yinchang 1,2; Vallobra, Pierre 1,2; Liu, Fengguang 1,2
刊名	APPLIED PHYSICS LETTERS
	2021-08-23
卷号	119
ISSN号	0003-6951
DOI	10.1063/5.0063090
通讯作者	Wang, Yihao(yihaow@hmfl.ac.cn) ; Xiong, Yimin(yxiong@hmfl.ac.cn) ; Zhao, Weisheng(weisheng.zhao@buaa.edu.cn)
英文摘要	Recently discovered massive Dirac fermions and room temperature skyrmions in the ferromagnetic kagome metal Fe3Sn2 have attracted extensive attention due to the potential applications in topological and spintronic devices. Because of its centrosymmetric lattice, the topological spin texture in Fe3Sn2 arises primarily from the competition between anisotropy and exchange interaction. In this Letter, we have identified the spin-reorientation at around 80 K by the magnetization and AC-susceptibility measurements. The evolution of the anisotropy is revealed by neutron powder diffraction data from 18 to 700 K, where the "breathing"-like kagome structure evolves into an ideal kagome lattice at higher temperature. Meanwhile, the deviation between the experimental and calculated results on heat capacity at high temperature and the softening of optical phonon modes in Raman spectra suggest the presence of anharmonic phonons in Fe3Sn2, which is responsible for the degeneracy of lattice thermal conductivity at high temperature. Our study indicates that Fe3Sn2 possesses a promising future in the design and development of topological, spintronic as well as thermoelectric devices.
资助项目	National Natural Science Foundation of China[12004185] ; National Natural Science Foundation of China[11774429] ; National Natural Science Foundation of China[12047561] ; National Natural Science Foundation of China[62004012] ; China Postdoctoral Science Foundation[2019M651767] ; China Postdoctoral Science Foundation[2020M682055] ; Science and Technology Innovation Program of Hunan Province[2020RC2038] ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China[20KJB140016] ; Scientific Research Start-up Funds of Nanjing Forestry University[163101110] ; Beihang Hefei Innovation Research Institute[BHKX-19-01] ; Beihang Hefei Innovation Research Institute[BHKX-19-02] ; [2019A0234]
WOS研究方向	Physics
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000687803400002
资助机构	National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Science and Technology Innovation Program of Hunan Province ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China ; Scientific Research Start-up Funds of Nanjing Forestry University ; Beihang Hefei Innovation Research Institute
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/124401]
专题	中国科学院合肥物质科学研究院
通讯作者	Wang, Yihao; Xiong, Yimin; Zhao, Weisheng
作者单位	1.Beihang Univ, Hefei Innovat Res Inst, Hefei 230013, Anhui, Peoples R China 2.Beihang Univ, Sch Integrated Circuit Sci & Engn, Beijing 100191, Peoples R China 3.Natl Univ Def Technol, Dept Phys, Changsha 410073, Hunan, Peoples R China 4.Chinese Acad Sci, Anhui Key Lab Condensed Matter Phys Extreme Condi, High Magnet Field Lab, HFIPS, Hefei 230031, Anhui, Peoples R China 5.Nanjing Forestry Univ, Coll Sci, Dept Appl Phys, Nanjing 210037, Jiangsu, Peoples R China 6.High Energy Accelerator Res Org KEK, Inst Mat Struct Sci, Tsukuba, Ibaraki 3050801, Japan 7.KEK, JPARC Ctr, Mat & Life Sci Div, Tokai, Ibaraki 3191106, Japan
推荐引用方式 GB/T 7714	Wu, Peng,Song, Jiuhui,Yu, Xiaoxiang,et al. Evidence of spin reorientation and anharmonicity in kagome ferromagnet Fe3Sn2[J]. APPLIED PHYSICS LETTERS,2021,119.
APA	Wu, Peng.,Song, Jiuhui.,Yu, Xiaoxiang.,Wang, Yihao.,Xia, Kang.,...&Zhao, Weisheng.(2021).Evidence of spin reorientation and anharmonicity in kagome ferromagnet Fe3Sn2.APPLIED PHYSICS LETTERS,119.
MLA	Wu, Peng,et al."Evidence of spin reorientation and anharmonicity in kagome ferromagnet Fe3Sn2".APPLIED PHYSICS LETTERS 119(2021).