Topologically-mediated energy release by relativistic antiferromagnetic solitons

Magnetic solitons offer functionalities as information carriers in multiple spintronic and magnonic applications. However, their potential for nanoscale energy transport has not been revealed. Here we demonstrate that antiferromagnetic solitons, e.g., domain walls, can uptake, transport, and release...

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Main Authors: R. M. Otxoa, R. Rama-Eiroa, P. E. Roy, G. Tatara, O. Chubykalo-Fesenko, U. Atxitia
Format: Article
Language:English
Published: American Physical Society 2021-10-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.3.043069
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author R. M. Otxoa
R. Rama-Eiroa
P. E. Roy
G. Tatara
O. Chubykalo-Fesenko
U. Atxitia
author_facet R. M. Otxoa
R. Rama-Eiroa
P. E. Roy
G. Tatara
O. Chubykalo-Fesenko
U. Atxitia
author_sort R. M. Otxoa
collection DOAJ
description Magnetic solitons offer functionalities as information carriers in multiple spintronic and magnonic applications. However, their potential for nanoscale energy transport has not been revealed. Here we demonstrate that antiferromagnetic solitons, e.g., domain walls, can uptake, transport, and release energy. The key for this functionality resides in their relativistic kinematics; their self-energy increases with velocity due to Lorentz contraction of the soliton and their dynamics can be accelerated up to the effective speed of light of the magnetic medium. Furthermore, their classification in robust topological classes allows us to selectively release this energy back into the medium by colliding solitons with opposite topology. Our work uncovers important energy-related aspects of the physics of antiferromagnetic solitons and opens up the attractive possibility for spin-based nanoscale and ultrafast energy transport devices.
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spelling doaj.art-1eb939df62a3420fb86d9a34dd2107b32024-04-12T17:15:06ZengAmerican Physical SocietyPhysical Review Research2643-15642021-10-013404306910.1103/PhysRevResearch.3.043069Topologically-mediated energy release by relativistic antiferromagnetic solitonsR. M. OtxoaR. Rama-EiroaP. E. RoyG. TataraO. Chubykalo-FesenkoU. AtxitiaMagnetic solitons offer functionalities as information carriers in multiple spintronic and magnonic applications. However, their potential for nanoscale energy transport has not been revealed. Here we demonstrate that antiferromagnetic solitons, e.g., domain walls, can uptake, transport, and release energy. The key for this functionality resides in their relativistic kinematics; their self-energy increases with velocity due to Lorentz contraction of the soliton and their dynamics can be accelerated up to the effective speed of light of the magnetic medium. Furthermore, their classification in robust topological classes allows us to selectively release this energy back into the medium by colliding solitons with opposite topology. Our work uncovers important energy-related aspects of the physics of antiferromagnetic solitons and opens up the attractive possibility for spin-based nanoscale and ultrafast energy transport devices.http://doi.org/10.1103/PhysRevResearch.3.043069
spellingShingle R. M. Otxoa
R. Rama-Eiroa
P. E. Roy
G. Tatara
O. Chubykalo-Fesenko
U. Atxitia
Topologically-mediated energy release by relativistic antiferromagnetic solitons
Physical Review Research
title Topologically-mediated energy release by relativistic antiferromagnetic solitons
title_full Topologically-mediated energy release by relativistic antiferromagnetic solitons
title_fullStr Topologically-mediated energy release by relativistic antiferromagnetic solitons
title_full_unstemmed Topologically-mediated energy release by relativistic antiferromagnetic solitons
title_short Topologically-mediated energy release by relativistic antiferromagnetic solitons
title_sort topologically mediated energy release by relativistic antiferromagnetic solitons
url http://doi.org/10.1103/PhysRevResearch.3.043069
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