Critical switching current density induced by spin Hall effect in magnetic structures with first- and second-order perpendicular magnetic anisotropy

Abstract In this study, we derive analytical expressions for the critical switching current density induced by spin Hall effect in magnetic structures with the first- and second-order perpendicular magnetic anisotropy. We confirm the validity of the expressions by comparing the analytical results wi...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Seok Jin Yun, Kyung-Jin Lee, Sang Ho Lim
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9fa5e3af53bb48ceaf211445c1500c09
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:9fa5e3af53bb48ceaf211445c1500c09
record_format	dspace
spelling	oai:doaj.org-article:9fa5e3af53bb48ceaf211445c1500c092021-12-02T11:41:11ZCritical switching current density induced by spin Hall effect in magnetic structures with first- and second-order perpendicular magnetic anisotropy10.1038/s41598-017-15681-22045-2322https://doaj.org/article/9fa5e3af53bb48ceaf211445c1500c092017-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-15681-2https://doaj.org/toc/2045-2322Abstract In this study, we derive analytical expressions for the critical switching current density induced by spin Hall effect in magnetic structures with the first- and second-order perpendicular magnetic anisotropy. We confirm the validity of the expressions by comparing the analytical results with those obtained from a macrospin simulation. Moreover, we find that for a particular thermal stability parameter, the switching current density can be minimized for a slightly positive second-order perpendicular magnetic anisotropy and the minimum switching current density can further be tuned using an external magnetic field. The analytical expressions are of considerable value in designing high-density magnetic random access memory and cryogenic memory.Seok Jin YunKyung-Jin LeeSang Ho LimNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Seok Jin Yun Kyung-Jin Lee Sang Ho Lim Critical switching current density induced by spin Hall effect in magnetic structures with first- and second-order perpendicular magnetic anisotropy
description	Abstract In this study, we derive analytical expressions for the critical switching current density induced by spin Hall effect in magnetic structures with the first- and second-order perpendicular magnetic anisotropy. We confirm the validity of the expressions by comparing the analytical results with those obtained from a macrospin simulation. Moreover, we find that for a particular thermal stability parameter, the switching current density can be minimized for a slightly positive second-order perpendicular magnetic anisotropy and the minimum switching current density can further be tuned using an external magnetic field. The analytical expressions are of considerable value in designing high-density magnetic random access memory and cryogenic memory.
format	article
author	Seok Jin Yun Kyung-Jin Lee Sang Ho Lim
author_facet	Seok Jin Yun Kyung-Jin Lee Sang Ho Lim
author_sort	Seok Jin Yun
title	Critical switching current density induced by spin Hall effect in magnetic structures with first- and second-order perpendicular magnetic anisotropy
title_short	Critical switching current density induced by spin Hall effect in magnetic structures with first- and second-order perpendicular magnetic anisotropy
title_full	Critical switching current density induced by spin Hall effect in magnetic structures with first- and second-order perpendicular magnetic anisotropy
title_fullStr	Critical switching current density induced by spin Hall effect in magnetic structures with first- and second-order perpendicular magnetic anisotropy
title_full_unstemmed	Critical switching current density induced by spin Hall effect in magnetic structures with first- and second-order perpendicular magnetic anisotropy
title_sort	critical switching current density induced by spin hall effect in magnetic structures with first- and second-order perpendicular magnetic anisotropy
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/9fa5e3af53bb48ceaf211445c1500c09
work_keys_str_mv	AT seokjinyun criticalswitchingcurrentdensityinducedbyspinhalleffectinmagneticstructureswithfirstandsecondorderperpendicularmagneticanisotropy AT kyungjinlee criticalswitchingcurrentdensityinducedbyspinhalleffectinmagneticstructureswithfirstandsecondorderperpendicularmagneticanisotropy AT sangholim criticalswitchingcurrentdensityinducedbyspinhalleffectinmagneticstructureswithfirstandsecondorderperpendicularmagneticanisotropy
_version_	1718395475861700608

Critical switching current density induced by spin Hall effect in magnetic structures with first- and second-order perpendicular magnetic anisotropy

Ejemplares similares