Equilibrium Skyrmion Lattice Ground State in a Polar Easy-plane Magnet

Abstract The skyrmion lattice state (SkL), a crystal built of mesoscopic spin vortices, gains its stability via thermal fluctuations in all bulk skyrmion host materials known to date. Therefore, its existence is limited to a narrow temperature region below the paramagnetic state. This stability rang...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	S. Bordács, A. Butykai, B. G. Szigeti, J. S. White, R. Cubitt, A. O. Leonov, S. Widmann, D. Ehlers, H.-A. Krug von Nidda, V. Tsurkan, A. Loidl, I. Kézsmárki
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e945815efe8f4a45a1ca1b8d3453a0b3
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:e945815efe8f4a45a1ca1b8d3453a0b3
record_format	dspace
spelling	oai:doaj.org-article:e945815efe8f4a45a1ca1b8d3453a0b32021-12-02T15:06:21ZEquilibrium Skyrmion Lattice Ground State in a Polar Easy-plane Magnet10.1038/s41598-017-07996-x2045-2322https://doaj.org/article/e945815efe8f4a45a1ca1b8d3453a0b32017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07996-xhttps://doaj.org/toc/2045-2322Abstract The skyrmion lattice state (SkL), a crystal built of mesoscopic spin vortices, gains its stability via thermal fluctuations in all bulk skyrmion host materials known to date. Therefore, its existence is limited to a narrow temperature region below the paramagnetic state. This stability range can drastically increase in systems with restricted geometries, such as thin films, interfaces and nanowires. Thermal quenching can also promote the SkL as a metastable state over extended temperature ranges. Here, we demonstrate more generally that a proper choice of material parameters alone guarantees the thermodynamic stability of the SkL over the full temperature range below the paramagnetic state down to zero kelvin. We found that GaV4Se8, a polar magnet with easy-plane anisotropy, hosts a robust Néel-type SkL even in its ground state. Our supporting theory confirms that polar magnets with weak uniaxial anisotropy are ideal candidates to realize SkLs with wide stability ranges.S. BordácsA. ButykaiB. G. SzigetiJ. S. WhiteR. CubittA. O. LeonovS. WidmannD. EhlersH.-A. Krug von NiddaV. TsurkanA. LoidlI. KézsmárkiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q S. Bordács A. Butykai B. G. Szigeti J. S. White R. Cubitt A. O. Leonov S. Widmann D. Ehlers H.-A. Krug von Nidda V. Tsurkan A. Loidl I. Kézsmárki Equilibrium Skyrmion Lattice Ground State in a Polar Easy-plane Magnet
description	Abstract The skyrmion lattice state (SkL), a crystal built of mesoscopic spin vortices, gains its stability via thermal fluctuations in all bulk skyrmion host materials known to date. Therefore, its existence is limited to a narrow temperature region below the paramagnetic state. This stability range can drastically increase in systems with restricted geometries, such as thin films, interfaces and nanowires. Thermal quenching can also promote the SkL as a metastable state over extended temperature ranges. Here, we demonstrate more generally that a proper choice of material parameters alone guarantees the thermodynamic stability of the SkL over the full temperature range below the paramagnetic state down to zero kelvin. We found that GaV4Se8, a polar magnet with easy-plane anisotropy, hosts a robust Néel-type SkL even in its ground state. Our supporting theory confirms that polar magnets with weak uniaxial anisotropy are ideal candidates to realize SkLs with wide stability ranges.
format	article
author	S. Bordács A. Butykai B. G. Szigeti J. S. White R. Cubitt A. O. Leonov S. Widmann D. Ehlers H.-A. Krug von Nidda V. Tsurkan A. Loidl I. Kézsmárki
author_facet	S. Bordács A. Butykai B. G. Szigeti J. S. White R. Cubitt A. O. Leonov S. Widmann D. Ehlers H.-A. Krug von Nidda V. Tsurkan A. Loidl I. Kézsmárki
author_sort	S. Bordács
title	Equilibrium Skyrmion Lattice Ground State in a Polar Easy-plane Magnet
title_short	Equilibrium Skyrmion Lattice Ground State in a Polar Easy-plane Magnet
title_full	Equilibrium Skyrmion Lattice Ground State in a Polar Easy-plane Magnet
title_fullStr	Equilibrium Skyrmion Lattice Ground State in a Polar Easy-plane Magnet
title_full_unstemmed	Equilibrium Skyrmion Lattice Ground State in a Polar Easy-plane Magnet
title_sort	equilibrium skyrmion lattice ground state in a polar easy-plane magnet
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/e945815efe8f4a45a1ca1b8d3453a0b3
work_keys_str_mv	AT sbordacs equilibriumskyrmionlatticegroundstateinapolareasyplanemagnet AT abutykai equilibriumskyrmionlatticegroundstateinapolareasyplanemagnet AT bgszigeti equilibriumskyrmionlatticegroundstateinapolareasyplanemagnet AT jswhite equilibriumskyrmionlatticegroundstateinapolareasyplanemagnet AT rcubitt equilibriumskyrmionlatticegroundstateinapolareasyplanemagnet AT aoleonov equilibriumskyrmionlatticegroundstateinapolareasyplanemagnet AT swidmann equilibriumskyrmionlatticegroundstateinapolareasyplanemagnet AT dehlers equilibriumskyrmionlatticegroundstateinapolareasyplanemagnet AT hakrugvonnidda equilibriumskyrmionlatticegroundstateinapolareasyplanemagnet AT vtsurkan equilibriumskyrmionlatticegroundstateinapolareasyplanemagnet AT aloidl equilibriumskyrmionlatticegroundstateinapolareasyplanemagnet AT ikezsmarki equilibriumskyrmionlatticegroundstateinapolareasyplanemagnet
_version_	1718388486729367552

Equilibrium Skyrmion Lattice Ground State in a Polar Easy-plane Magnet

Ejemplares similares