Switching of spins and entanglement in surface-supported antiferromagnetic chains

Abstract Previous experimental studies discovered universal growth of chains and nanowires of various chemical elements on a corrugated molecular network of Cu3N on the Cu(110). Herein, performing combined ab initio and quantum Hamiltonian studies we demonstrate that such chains can be used for a fa...

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Autores principales:	Ilia N. Sivkov, Dmitry I. Bazhanov, Valeri S. Stepanyuk
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c1831dc362ba4cceb9a3198a671826da
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spelling	oai:doaj.org-article:c1831dc362ba4cceb9a3198a671826da2021-12-02T11:52:15ZSwitching of spins and entanglement in surface-supported antiferromagnetic chains10.1038/s41598-017-02972-x2045-2322https://doaj.org/article/c1831dc362ba4cceb9a3198a671826da2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-02972-xhttps://doaj.org/toc/2045-2322Abstract Previous experimental studies discovered universal growth of chains and nanowires of various chemical elements on a corrugated molecular network of Cu3N on the Cu(110). Herein, performing combined ab initio and quantum Hamiltonian studies we demonstrate that such chains can be used for a fast spin switching and entanglement generation by locally applied magnetic pulses. As an example, we show that in antiferromagnetic Co chains a strong entanglement between ends of chains occurs during spin switching. A novel parity effect in spin dynamics is reported. Even-numbered chains are found to exhibit significantly faster spin switching than odd-numbered counterparts. Moreover, at certain parameters of the system the dimerization effect in the spin dynamics of the chains was found. Our studies give a clear evidence that tailoring spin dynamics and entanglement can be achieved by magnetic fields and by tuning exchange interactions in supported chains.Ilia N. SivkovDmitry I. BazhanovValeri S. StepanyukNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ilia N. Sivkov Dmitry I. Bazhanov Valeri S. Stepanyuk Switching of spins and entanglement in surface-supported antiferromagnetic chains
description	Abstract Previous experimental studies discovered universal growth of chains and nanowires of various chemical elements on a corrugated molecular network of Cu3N on the Cu(110). Herein, performing combined ab initio and quantum Hamiltonian studies we demonstrate that such chains can be used for a fast spin switching and entanglement generation by locally applied magnetic pulses. As an example, we show that in antiferromagnetic Co chains a strong entanglement between ends of chains occurs during spin switching. A novel parity effect in spin dynamics is reported. Even-numbered chains are found to exhibit significantly faster spin switching than odd-numbered counterparts. Moreover, at certain parameters of the system the dimerization effect in the spin dynamics of the chains was found. Our studies give a clear evidence that tailoring spin dynamics and entanglement can be achieved by magnetic fields and by tuning exchange interactions in supported chains.
format	article
author	Ilia N. Sivkov Dmitry I. Bazhanov Valeri S. Stepanyuk
author_facet	Ilia N. Sivkov Dmitry I. Bazhanov Valeri S. Stepanyuk
author_sort	Ilia N. Sivkov
title	Switching of spins and entanglement in surface-supported antiferromagnetic chains
title_short	Switching of spins and entanglement in surface-supported antiferromagnetic chains
title_full	Switching of spins and entanglement in surface-supported antiferromagnetic chains
title_fullStr	Switching of spins and entanglement in surface-supported antiferromagnetic chains
title_full_unstemmed	Switching of spins and entanglement in surface-supported antiferromagnetic chains
title_sort	switching of spins and entanglement in surface-supported antiferromagnetic chains
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/c1831dc362ba4cceb9a3198a671826da
work_keys_str_mv	AT iliansivkov switchingofspinsandentanglementinsurfacesupportedantiferromagneticchains AT dmitryibazhanov switchingofspinsandentanglementinsurfacesupportedantiferromagneticchains AT valerisstepanyuk switchingofspinsandentanglementinsurfacesupportedantiferromagneticchains
_version_	1718395129939623936

Switching of spins and entanglement in surface-supported antiferromagnetic chains

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