Non-volatile logic gates based on planar Hall effect in magnetic films with two in-plane easy axes

Abstract We discuss the use of planar Hall effect (PHE) in a ferromagnetic GaMnAs film with two in-plane easy axes as a means for achieving novel logic functionalities. We show that the switching of magnetization between the easy axes in a GaMnAs film depends strongly on the magnitude of the current...

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Autores principales:	Sangyeop Lee, Seul-Ki Bac, Seonghoon Choi, Hakjoon Lee, Taehee Yoo, Sanghoon Lee, Xinyu Liu, M. Dobrowolska, Jacek K. Furdyna
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/903937e53e3b43b39af619b7a353c83d
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spelling	oai:doaj.org-article:903937e53e3b43b39af619b7a353c83d2021-12-02T11:53:08ZNon-volatile logic gates based on planar Hall effect in magnetic films with two in-plane easy axes10.1038/s41598-017-01219-z2045-2322https://doaj.org/article/903937e53e3b43b39af619b7a353c83d2017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01219-zhttps://doaj.org/toc/2045-2322Abstract We discuss the use of planar Hall effect (PHE) in a ferromagnetic GaMnAs film with two in-plane easy axes as a means for achieving novel logic functionalities. We show that the switching of magnetization between the easy axes in a GaMnAs film depends strongly on the magnitude of the current flowing through the film due to thermal effects that modify its magnetic anisotropy. Planar Hall resistance in a GaMnAs film with two in-plane easy axes shows well-defined maxima and minima that can serve as two binary logic states. By choosing appropriate magnitudes of the input current for the GaMnAs Hall device, magnetic logic functions can then be achieved. Specifically, non-volatile logic functionalities such as AND, OR, NAND, and NOR gates can be obtained in such a device by selecting appropriate initial conditions. These results, involving a simple PHE device, hold promise for realizing programmable logic elements in magnetic electronics.Sangyeop LeeSeul-Ki BacSeonghoon ChoiHakjoon LeeTaehee YooSanghoon LeeXinyu LiuM. DobrowolskaJacek K. FurdynaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sangyeop Lee Seul-Ki Bac Seonghoon Choi Hakjoon Lee Taehee Yoo Sanghoon Lee Xinyu Liu M. Dobrowolska Jacek K. Furdyna Non-volatile logic gates based on planar Hall effect in magnetic films with two in-plane easy axes
description	Abstract We discuss the use of planar Hall effect (PHE) in a ferromagnetic GaMnAs film with two in-plane easy axes as a means for achieving novel logic functionalities. We show that the switching of magnetization between the easy axes in a GaMnAs film depends strongly on the magnitude of the current flowing through the film due to thermal effects that modify its magnetic anisotropy. Planar Hall resistance in a GaMnAs film with two in-plane easy axes shows well-defined maxima and minima that can serve as two binary logic states. By choosing appropriate magnitudes of the input current for the GaMnAs Hall device, magnetic logic functions can then be achieved. Specifically, non-volatile logic functionalities such as AND, OR, NAND, and NOR gates can be obtained in such a device by selecting appropriate initial conditions. These results, involving a simple PHE device, hold promise for realizing programmable logic elements in magnetic electronics.
format	article
author	Sangyeop Lee Seul-Ki Bac Seonghoon Choi Hakjoon Lee Taehee Yoo Sanghoon Lee Xinyu Liu M. Dobrowolska Jacek K. Furdyna
author_facet	Sangyeop Lee Seul-Ki Bac Seonghoon Choi Hakjoon Lee Taehee Yoo Sanghoon Lee Xinyu Liu M. Dobrowolska Jacek K. Furdyna
author_sort	Sangyeop Lee
title	Non-volatile logic gates based on planar Hall effect in magnetic films with two in-plane easy axes
title_short	Non-volatile logic gates based on planar Hall effect in magnetic films with two in-plane easy axes
title_full	Non-volatile logic gates based on planar Hall effect in magnetic films with two in-plane easy axes
title_fullStr	Non-volatile logic gates based on planar Hall effect in magnetic films with two in-plane easy axes
title_full_unstemmed	Non-volatile logic gates based on planar Hall effect in magnetic films with two in-plane easy axes
title_sort	non-volatile logic gates based on planar hall effect in magnetic films with two in-plane easy axes
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/903937e53e3b43b39af619b7a353c83d
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Non-volatile logic gates based on planar Hall effect in magnetic films with two in-plane easy axes

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