Large spin Hall angle in vanadium film

Abstract We report a large spin Hall angle observed in vanadium films sputter-grown at room temperature, which have small grain size and consist of a mixture of body centered tetragonal (bct) and body centered cubic (bcc) structures. The spin Hall angle is as large as θ V = −0.071 ± 0.003, comparab...

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Autores principales:	T. Wang, W. Wang, Y. Xie, M. A. Warsi, J. Wu, Y. Chen, V. O. Lorenz, X. Fan, J. Q. Xiao
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e0fd2adb151c498aa3ee324cf073693c
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spelling	oai:doaj.org-article:e0fd2adb151c498aa3ee324cf073693c2021-12-02T15:05:49ZLarge spin Hall angle in vanadium film10.1038/s41598-017-01112-92045-2322https://doaj.org/article/e0fd2adb151c498aa3ee324cf073693c2017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01112-9https://doaj.org/toc/2045-2322Abstract We report a large spin Hall angle observed in vanadium films sputter-grown at room temperature, which have small grain size and consist of a mixture of body centered tetragonal (bct) and body centered cubic (bcc) structures. The spin Hall angle is as large as θ V = −0.071 ± 0.003, comparable to that of platinum, θ Pt = 0.076 ± 0.007, and is much larger than that of bcc V film grown at 400 °C, θ V_bcc = −0.012 ± 0.002. Similar to β-tantalum and β-tungsten, the sputter-grown V films also have a high resistivity of more than 200 μΩ∙cm. Surprisingly, the spin diffusion length is still long at 16.3 nm. This finding not only indicates that specific crystalline structure can lead to a large spin Hall effect but also suggests 3d light metals should not be ruled out in the search for materials with large spin Hall angle.T. WangW. WangY. XieM. A. WarsiJ. WuY. ChenV. O. LorenzX. FanJ. Q. XiaoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-6 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q T. Wang W. Wang Y. Xie M. A. Warsi J. Wu Y. Chen V. O. Lorenz X. Fan J. Q. Xiao Large spin Hall angle in vanadium film
description	Abstract We report a large spin Hall angle observed in vanadium films sputter-grown at room temperature, which have small grain size and consist of a mixture of body centered tetragonal (bct) and body centered cubic (bcc) structures. The spin Hall angle is as large as θ V = −0.071 ± 0.003, comparable to that of platinum, θ Pt = 0.076 ± 0.007, and is much larger than that of bcc V film grown at 400 °C, θ V_bcc = −0.012 ± 0.002. Similar to β-tantalum and β-tungsten, the sputter-grown V films also have a high resistivity of more than 200 μΩ∙cm. Surprisingly, the spin diffusion length is still long at 16.3 nm. This finding not only indicates that specific crystalline structure can lead to a large spin Hall effect but also suggests 3d light metals should not be ruled out in the search for materials with large spin Hall angle.
format	article
author	T. Wang W. Wang Y. Xie M. A. Warsi J. Wu Y. Chen V. O. Lorenz X. Fan J. Q. Xiao
author_facet	T. Wang W. Wang Y. Xie M. A. Warsi J. Wu Y. Chen V. O. Lorenz X. Fan J. Q. Xiao
author_sort	T. Wang
title	Large spin Hall angle in vanadium film
title_short	Large spin Hall angle in vanadium film
title_full	Large spin Hall angle in vanadium film
title_fullStr	Large spin Hall angle in vanadium film
title_full_unstemmed	Large spin Hall angle in vanadium film
title_sort	large spin hall angle in vanadium film
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/e0fd2adb151c498aa3ee324cf073693c
work_keys_str_mv	AT twang largespinhallangleinvanadiumfilm AT wwang largespinhallangleinvanadiumfilm AT yxie largespinhallangleinvanadiumfilm AT mawarsi largespinhallangleinvanadiumfilm AT jwu largespinhallangleinvanadiumfilm AT ychen largespinhallangleinvanadiumfilm AT volorenz largespinhallangleinvanadiumfilm AT xfan largespinhallangleinvanadiumfilm AT jqxiao largespinhallangleinvanadiumfilm
_version_	1718388738435842048

Large spin Hall angle in vanadium film

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