Molecular coupling competing with defects within insulator of the magnetic tunnel junction-based molecular spintronics devices

Abstract Nearly 70 years old dream of incorporating molecule as the device element is still challenged by competing defects in almost every experimentally tested molecular device approach. This paper focuses on the magnetic tunnel junction (MTJ) based molecular spintronics device (MTJMSD) method. An...

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Autores principales:	Pawan Tyagi, Hayden Brown, Andrew Grizzle, Christopher D’Angelo, Bishnu R. Dahal
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2290b32298854638b7a2feff41136bc9
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spelling	oai:doaj.org-article:2290b32298854638b7a2feff41136bc92021-12-02T15:09:07ZMolecular coupling competing with defects within insulator of the magnetic tunnel junction-based molecular spintronics devices10.1038/s41598-021-96477-32045-2322https://doaj.org/article/2290b32298854638b7a2feff41136bc92021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96477-3https://doaj.org/toc/2045-2322Abstract Nearly 70 years old dream of incorporating molecule as the device element is still challenged by competing defects in almost every experimentally tested molecular device approach. This paper focuses on the magnetic tunnel junction (MTJ) based molecular spintronics device (MTJMSD) method. An MTJMSD utilizes a tunnel barrier to ensure a robust and mass-producible physical gap between two ferromagnetic electrodes. MTJMSD approach may benefit from MTJ's industrial practices; however, the MTJMSD approach still needs to overcome additional challenges arising from the inclusion of magnetic molecules in conjunction with competing defects. Molecular device channels are covalently bonded between two ferromagnets across the insulating barrier. An insulating barrier may possess a variety of potential defects arising during the fabrication or operational phase. This paper describes an experimental and theoretical study of molecular coupling between ferromagnets in the presence of the competing coupling via an insulating tunnel barrier. We discuss the experimental observations of hillocks and pinhole-type defects producing inter-layer coupling that compete with molecular device elements. We performed theoretical simulations to encompass a wide range of competition between molecules and defects. Monte Carlo Simulation (MCS) was used for investigating the defect-induced inter-layer coupling on MTJMSD. Our research may help understand and design molecular spintronics devices utilizing various insulating spacers such as aluminum oxide (AlOx) and magnesium oxide (MgO) on a wide range of metal electrodes. This paper intends to provide practical insights for researchers intending to investigate the molecular device properties via the MTJMSD approach and do not have a background in magnetic tunnel junction fabrication.Pawan TyagiHayden BrownAndrew GrizzleChristopher D’AngeloBishnu R. DahalNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Pawan Tyagi Hayden Brown Andrew Grizzle Christopher D’Angelo Bishnu R. Dahal Molecular coupling competing with defects within insulator of the magnetic tunnel junction-based molecular spintronics devices
description	Abstract Nearly 70 years old dream of incorporating molecule as the device element is still challenged by competing defects in almost every experimentally tested molecular device approach. This paper focuses on the magnetic tunnel junction (MTJ) based molecular spintronics device (MTJMSD) method. An MTJMSD utilizes a tunnel barrier to ensure a robust and mass-producible physical gap between two ferromagnetic electrodes. MTJMSD approach may benefit from MTJ's industrial practices; however, the MTJMSD approach still needs to overcome additional challenges arising from the inclusion of magnetic molecules in conjunction with competing defects. Molecular device channels are covalently bonded between two ferromagnets across the insulating barrier. An insulating barrier may possess a variety of potential defects arising during the fabrication or operational phase. This paper describes an experimental and theoretical study of molecular coupling between ferromagnets in the presence of the competing coupling via an insulating tunnel barrier. We discuss the experimental observations of hillocks and pinhole-type defects producing inter-layer coupling that compete with molecular device elements. We performed theoretical simulations to encompass a wide range of competition between molecules and defects. Monte Carlo Simulation (MCS) was used for investigating the defect-induced inter-layer coupling on MTJMSD. Our research may help understand and design molecular spintronics devices utilizing various insulating spacers such as aluminum oxide (AlOx) and magnesium oxide (MgO) on a wide range of metal electrodes. This paper intends to provide practical insights for researchers intending to investigate the molecular device properties via the MTJMSD approach and do not have a background in magnetic tunnel junction fabrication.
format	article
author	Pawan Tyagi Hayden Brown Andrew Grizzle Christopher D’Angelo Bishnu R. Dahal
author_facet	Pawan Tyagi Hayden Brown Andrew Grizzle Christopher D’Angelo Bishnu R. Dahal
author_sort	Pawan Tyagi
title	Molecular coupling competing with defects within insulator of the magnetic tunnel junction-based molecular spintronics devices
title_short	Molecular coupling competing with defects within insulator of the magnetic tunnel junction-based molecular spintronics devices
title_full	Molecular coupling competing with defects within insulator of the magnetic tunnel junction-based molecular spintronics devices
title_fullStr	Molecular coupling competing with defects within insulator of the magnetic tunnel junction-based molecular spintronics devices
title_full_unstemmed	Molecular coupling competing with defects within insulator of the magnetic tunnel junction-based molecular spintronics devices
title_sort	molecular coupling competing with defects within insulator of the magnetic tunnel junction-based molecular spintronics devices
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2290b32298854638b7a2feff41136bc9
work_keys_str_mv	AT pawantyagi molecularcouplingcompetingwithdefectswithininsulatorofthemagnetictunneljunctionbasedmolecularspintronicsdevices AT haydenbrown molecularcouplingcompetingwithdefectswithininsulatorofthemagnetictunneljunctionbasedmolecularspintronicsdevices AT andrewgrizzle molecularcouplingcompetingwithdefectswithininsulatorofthemagnetictunneljunctionbasedmolecularspintronicsdevices AT christopherdangelo molecularcouplingcompetingwithdefectswithininsulatorofthemagnetictunneljunctionbasedmolecularspintronicsdevices AT bishnurdahal molecularcouplingcompetingwithdefectswithininsulatorofthemagnetictunneljunctionbasedmolecularspintronicsdevices
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Molecular coupling competing with defects within insulator of the magnetic tunnel junction-based molecular spintronics devices

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