Large spin-orbit torque efficiency in PtBi2 film

doi:10.1063/5.0061732

IMR OpenIR

	Large spin-orbit torque efficiency in PtBi2 film
	Li, Shangkun 1; Luo, Yanxiang 1; Chen, Qian 1; Lv, Weiming 1,2; Song, Yuhang 3; Liu, Long 3; Zhao, Xiaotian 3; Liu, Wei 3; Zhang, Baoshun 1,2; Zeng, Zhongming 1,2
通讯作者	Zeng, Zhongming(zmzeng2012@sinano.ac.cn)
	2021-09-27
发表期刊	APPLIED PHYSICS LETTERS
ISSN	0003-6951
卷号	119 期号:13 页码:5
摘要	Bulk PtBi2 has attracted much attention for its topological semi-metallic electronic properties and highly promising applications in spintronics. Here, we report large spin-orbit torque (SOT) efficiency in the sputtered PtBi2 alloy with the trigonal-phase. From spin-torque-induced ferromagnetic resonance measurements, the SOT efficiency of 5 nm PtBi2 is estimated to be & SIM;0.2. Moreover, the spin Hall conductivity of PtBi2 [& SIM;1 x 10(5) PLANCK CONSTANT OVER TWO PI/2e (omega m)(-1)] is comparable to that of topological materials, such PtTe2 and Bi2Te3. The PtBi2 film has much lower resistance than that of Bi-based topological materials, which makes it a useful candidate for application. The results suggest that the PtBi2 alloy is promising for applications in magnetic memory and logic devices driven by SOT.
资助者	China Postdoctoral Science Foundation ; Natural Science Foundation of Jiangsu Province
DOI	10.1063/5.0061732
收录类别	SCI
语种	英语
资助项目	China Postdoctoral Science Foundation[12004415] ; China Postdoctoral Science Foundation[51732010] ; China Postdoctoral Science Foundation[51802341] ; Natural Science Foundation of Jiangsu Province[2019M661965] ; Natural Science Foundation of Jiangsu Province[2020M671592] ; [BK20200255]
WOS研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:000751392400017
出版者	AIP Publishing
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/173513
专题	中国科学院金属研究所
通讯作者	Zeng, Zhongming
作者单位	1.Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Key Lab Multifunct Nanomat & Smart Syst, Suzhou 215123, Jiangsu, Peoples R China 2.Chinese Acad Sci, Nanchang Nanodevices & Technol Div, Suzhou Inst Nanotech & Nanobion, Nanchang 330200, Jiangxi, Peoples R China 3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, Shangkun,Luo, Yanxiang,Chen, Qian,et al. Large spin-orbit torque efficiency in PtBi2 film[J]. APPLIED PHYSICS LETTERS,2021,119(13):5.
APA	Li, Shangkun.,Luo, Yanxiang.,Chen, Qian.,Lv, Weiming.,Song, Yuhang.,...&Zeng, Zhongming.(2021).Large spin-orbit torque efficiency in PtBi2 film.APPLIED PHYSICS LETTERS,119(13),5.
MLA	Li, Shangkun,et al."Large spin-orbit torque efficiency in PtBi2 film".APPLIED PHYSICS LETTERS 119.13(2021):5.