Room-temperature helimagnetism in FeGe thin films

Abstract Chiral magnets are promising materials for the realisation of high-density and low-power spintronic memory devices. For these future applications, a key requirement is the synthesis of appropriate materials in the form of thin films ordering well above room temperature. Driven by the Dzyalo...

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Autores principales:	S. L. Zhang, I. Stasinopoulos, T. Lancaster, F. Xiao, A. Bauer, F. Rucker, A. A. Baker, A. I. Figueroa, Z. Salman, F. L. Pratt, S. J. Blundell, T. Prokscha, A. Suter, J. Waizner, M. Garst, D. Grundler, G. van der Laan, C. Pfleiderer, T. Hesjedal
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4fd102938b8d4d90a8427f61d406ea3e
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spelling	oai:doaj.org-article:4fd102938b8d4d90a8427f61d406ea3e2021-12-02T15:05:54ZRoom-temperature helimagnetism in FeGe thin films10.1038/s41598-017-00201-z2045-2322https://doaj.org/article/4fd102938b8d4d90a8427f61d406ea3e2017-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00201-zhttps://doaj.org/toc/2045-2322Abstract Chiral magnets are promising materials for the realisation of high-density and low-power spintronic memory devices. For these future applications, a key requirement is the synthesis of appropriate materials in the form of thin films ordering well above room temperature. Driven by the Dzyaloshinskii-Moriya interaction, the cubic compound FeGe exhibits helimagnetism with a relatively high transition temperature of 278 K in bulk crystals. We demonstrate that this temperature can be enhanced significantly in thin films. Using x-ray scattering and ferromagnetic resonance techniques, we provide unambiguous experimental evidence for long-wavelength helimagnetic order at room temperature and magnetic properties similar to the bulk material. We obtain α intr = 0.0036 ± 0.0003 at 310 K for the intrinsic damping parameter. We probe the dynamics of the system by means of muon-spin rotation, indicating that the ground state is reached via a freezing out of slow dynamics. Our work paves the way towards the fabrication of thin films of chiral magnets that host certain spin whirls, so-called skyrmions, at room temperature and potentially offer integrability into modern electronics.S. L. ZhangI. StasinopoulosT. LancasterF. XiaoA. BauerF. RuckerA. A. BakerA. I. FigueroaZ. SalmanF. L. PrattS. J. BlundellT. ProkschaA. SuterJ. WaiznerM. GarstD. GrundlerG. van der LaanC. PfleidererT. HesjedalNature 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 S. L. Zhang I. Stasinopoulos T. Lancaster F. Xiao A. Bauer F. Rucker A. A. Baker A. I. Figueroa Z. Salman F. L. Pratt S. J. Blundell T. Prokscha A. Suter J. Waizner M. Garst D. Grundler G. van der Laan C. Pfleiderer T. Hesjedal Room-temperature helimagnetism in FeGe thin films
description	Abstract Chiral magnets are promising materials for the realisation of high-density and low-power spintronic memory devices. For these future applications, a key requirement is the synthesis of appropriate materials in the form of thin films ordering well above room temperature. Driven by the Dzyaloshinskii-Moriya interaction, the cubic compound FeGe exhibits helimagnetism with a relatively high transition temperature of 278 K in bulk crystals. We demonstrate that this temperature can be enhanced significantly in thin films. Using x-ray scattering and ferromagnetic resonance techniques, we provide unambiguous experimental evidence for long-wavelength helimagnetic order at room temperature and magnetic properties similar to the bulk material. We obtain α intr = 0.0036 ± 0.0003 at 310 K for the intrinsic damping parameter. We probe the dynamics of the system by means of muon-spin rotation, indicating that the ground state is reached via a freezing out of slow dynamics. Our work paves the way towards the fabrication of thin films of chiral magnets that host certain spin whirls, so-called skyrmions, at room temperature and potentially offer integrability into modern electronics.
format	article
author	S. L. Zhang I. Stasinopoulos T. Lancaster F. Xiao A. Bauer F. Rucker A. A. Baker A. I. Figueroa Z. Salman F. L. Pratt S. J. Blundell T. Prokscha A. Suter J. Waizner M. Garst D. Grundler G. van der Laan C. Pfleiderer T. Hesjedal
author_facet	S. L. Zhang I. Stasinopoulos T. Lancaster F. Xiao A. Bauer F. Rucker A. A. Baker A. I. Figueroa Z. Salman F. L. Pratt S. J. Blundell T. Prokscha A. Suter J. Waizner M. Garst D. Grundler G. van der Laan C. Pfleiderer T. Hesjedal
author_sort	S. L. Zhang
title	Room-temperature helimagnetism in FeGe thin films
title_short	Room-temperature helimagnetism in FeGe thin films
title_full	Room-temperature helimagnetism in FeGe thin films
title_fullStr	Room-temperature helimagnetism in FeGe thin films
title_full_unstemmed	Room-temperature helimagnetism in FeGe thin films
title_sort	room-temperature helimagnetism in fege thin films
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/4fd102938b8d4d90a8427f61d406ea3e
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Room-temperature helimagnetism in FeGe thin films

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