High Spin Hall Conductivity in Large-Area Type-II Dirac Semimetal PtTe2

doi:10.1002/adma.202000513

	High Spin Hall Conductivity in Large-Area Type-II Dirac Semimetal PtTe2
	Xu, Hongjun 2,3,4; Wei, Jinwu 2,3,4; Zhou, Hengan 5,6; Feng, Jiafeng 2,3; Xu, Teng 5,6; Du, Haifeng 1; He, Congli 7; Huang, Yuan 2; Zhang, Junwei 8,9; Liu, Yizhou 2,3
刊名	ADVANCED MATERIALS
	2020-04-01
卷号	32
关键词	platina ditelluride spin Hall conductivity spin-orbit torque thin film type-II Dirac semimetal
ISSN号	0935-9648
DOI	10.1002/adma.202000513
通讯作者	Yu, Guoqiang(guoqiangyu@iphy.ac.cn)
英文摘要	Manipulation of magnetization by electric-current-induced spin-orbit torque (SOT) is of great importance for spintronic applications because of its merits in energy-efficient and high-speed operation. An ideal material for SOT applications should possess high charge-spin conversion efficiency and high electrical conductivity. Recently, transition metal dichalcogenides (TMDs) emerge as intriguing platforms for SOT study because of their controllability in spin-orbit coupling, conductivity, and energy band topology. Although TMDs show great potentials in SOT applications, the present study is restricted to the mechanically exfoliated samples with small sizes and relatively low conductivities. Here, a manufacturable recipe is developed to fabricate large-area thin films of PtTe2, a type-II Dirac semimetal, to study their capability of generating SOT. Large SOT efficiency together with high conductivity results in a giant spin Hall conductivity of PtTe2 thin films, which is the largest value among the presently reported TMDs. It is further demonstrated that the SOT from PtTe2 layer can switch a perpendicularly magnetized CoTb layer efficiently. This work paves the way for employing PtTe2-like TMDs for wafer-scale spintronic device applications.
WOS关键词	ORBIT TORQUES ; METAL ; PTSE2 ; FILMS
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000530300000031
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/103405]
专题	中国科学院合肥物质科学研究院
通讯作者	Yu, Guoqiang
作者单位	1.Chinese Acad Sci, High Field Magnet Lab, 350 Shushanhu Rd, Hefei 230031, Anhui, Peoples R China 2.Chinese Acad Sci, Univ Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China 4.Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China 5.Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China 6.Collaborat Innovat Ctr Quantum Matter, Beijing 100084, Peoples R China 7.Beijing Normal Univ, Inst Adv Mat, Beijing 100875, Peoples R China 8.Lanzhou Univ, Key Lab Magnetism & Magnet Mat, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China 9.Lanzhou Univ, Electron Microscopy Ctr, Lanzhou 730000, Peoples R China 10.Beijing Inst Technol, Sch Phys, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Xu, Hongjun,Wei, Jinwu,Zhou, Hengan,et al. High Spin Hall Conductivity in Large-Area Type-II Dirac Semimetal PtTe2[J]. ADVANCED MATERIALS,2020,32.
APA	Xu, Hongjun.,Wei, Jinwu.,Zhou, Hengan.,Feng, Jiafeng.,Xu, Teng.,...&Han, Xiufeng.(2020).High Spin Hall Conductivity in Large-Area Type-II Dirac Semimetal PtTe2.ADVANCED MATERIALS,32.
MLA	Xu, Hongjun,et al."High Spin Hall Conductivity in Large-Area Type-II Dirac Semimetal PtTe2".ADVANCED MATERIALS 32(2020).