Field-induced tricritical behavior in the Neel-type skyrmion host GaV4S8

doi:10.1103/PhysRevB.102.094431

	Field-induced tricritical behavior in the Neel-type skyrmion host GaV4S8
	Liu, Bingjie 3,4; Wang, Zhe 3,5; Zou, Youming 3; Zhou, Shiming 1; Li, Hexuan 3,5; Xu, Jiemin 3,5; Zhang, Lei 3; Xu, Jingtao 6; Tian, Mingliang 3; Du, Haifeng 3
刊名	PHYSICAL REVIEW B
	2020-09-24
卷号	102
ISSN号	2469-9950
DOI	10.1103/PhysRevB.102.094431
通讯作者	Qu, Zhe(zhequ@hmfl.ac.cn)
英文摘要	The lacunar spinel compound GaV4S8 exhibits a Neel-type skyrmion, which holds great promise for future spintronics and ultrahigh-density magnetic memory devices. To gain more insight into the magnetic interactions, the critical behavior of GaV4S8 is studied by dc magnetization measurement around the Curie temperature (T-C). A set of reliable critical exponents (beta = 0.220 +/- 0.024, gamma = 0.909 +/- 0.005, and delta = 5.161 +/- 0.003) is obtained by the modified Arrott plot technique, the Kouvel-Fisher method, and critical isothermal analysis. The generated critical exponents fulfill the universality class of tricritical mean-field theory, which suggests a field-induced tricritical phenomenon. Based on the scaling equations, boundaries between the skyrmion and ferromagnetic phases can be distinguished. A tricritical point is revealed at the temperature of T-Tr = 12 K and field of H-Tr = 60 mT, which is located at the intersection point among the skyrmion, ferromagnetic, and paramagnetic phases. It is suggested that the origin of the tricritical behavior in GaV4S8 is related to the skyrmion state near the magnetic transition temperature T-C.
资助项目	National Natural Science Foundation of China[U1832214] ; National Natural Science Foundation of China[11774352] ; National Natural Science Foundation of China[11874358] ; National Natural Science Foundation of China[12074386]
WOS关键词	LATTICE ; NICKEL ; STATES
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000572280400002
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/104196]
专题	中国科学院合肥物质科学研究院
通讯作者	Qu, Zhe
作者单位	1.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, CAS Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Anhui, Peoples R China 3.Chinese Acad Sci, Hefei Inst Phys Sci, High Magnet Field Lab, Anhui Key Lab Condensed Matter Phys Extreme Condi, Hefei 230031, Anhui, Peoples R China 4.Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China 5.Univ Sci & Technol China, Grad Sch, Sci Isl Branch, Hefei 230026, Anhui, Peoples R China 6.Ningbo Ruiling Adv Energy Mat Inst Co Ltd, Ningbo 315500, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Liu, Bingjie,Wang, Zhe,Zou, Youming,et al. Field-induced tricritical behavior in the Neel-type skyrmion host GaV4S8[J]. PHYSICAL REVIEW B,2020,102.
APA	Liu, Bingjie.,Wang, Zhe.,Zou, Youming.,Zhou, Shiming.,Li, Hexuan.,...&Qu, Zhe.(2020).Field-induced tricritical behavior in the Neel-type skyrmion host GaV4S8.PHYSICAL REVIEW B,102.
MLA	Liu, Bingjie,et al."Field-induced tricritical behavior in the Neel-type skyrmion host GaV4S8".PHYSICAL REVIEW B 102(2020).