Observation of Magnetic Radial Vortex Nucleation in a Multilayer Stack with Tunable Anisotropy

Abstract Recently discovered exotic magnetic configurations, namely magnetic solitons appearing in the presence of bulk or interfacial Dzyaloshinskii-Moriya Interaction (i-DMI), have excited scientists to explore their potential applications in emerging spintronic technologies such as race-track mag...

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Autores principales:	Vedat Karakas, Aisha Gokce, Ali Taha Habiboglu, Sevdenur Arpaci, Kaan Ozbozduman, Ibrahim Cinar, Cenk Yanik, Riccardo Tomasello, Silvia Tacchi, Giulio Siracusano, Mario Carpentieri, Giovanni Finocchio, Thomas Hauet, Ozhan Ozatay
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/870eea367f1c439099e18f77957d908f
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spelling	oai:doaj.org-article:870eea367f1c439099e18f77957d908f2021-12-02T12:31:57ZObservation of Magnetic Radial Vortex Nucleation in a Multilayer Stack with Tunable Anisotropy10.1038/s41598-018-25392-x2045-2322https://doaj.org/article/870eea367f1c439099e18f77957d908f2018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25392-xhttps://doaj.org/toc/2045-2322Abstract Recently discovered exotic magnetic configurations, namely magnetic solitons appearing in the presence of bulk or interfacial Dzyaloshinskii-Moriya Interaction (i-DMI), have excited scientists to explore their potential applications in emerging spintronic technologies such as race-track magnetic memory, spin logic, radio frequency nano-oscillators and sensors. Such studies are motivated by their foreseeable advantages over conventional micro-magnetic structures due to their small size, topological stability and easy spin-torque driven manipulation with much lower threshold current densities giving way to improved storage capacity, and faster operation with efficient use of energy. In this work, we show that in the presence of i-DMI in Pt/CoFeB/Ti multilayers by tuning the magnetic anisotropy (both in-plane and perpendicular-to-plane) via interface engineering and postproduction treatments, we can stabilize a variety of magnetic configurations such as Néel skyrmions, horseshoes and most importantly, the recently predicted isolated radial vortices at room temperature and under zero bias field. Especially, the radial vortex state with its absolute convergence to or divergence from a single point can potentially offer exciting new applications such as particle trapping/detrapping in addition to magnetoresistive memories with efficient switching, where the radial vortex state can act as a source of spin-polarized current with radial polarization.Vedat KarakasAisha GokceAli Taha HabibogluSevdenur ArpaciKaan OzbozdumanIbrahim CinarCenk YanikRiccardo TomaselloSilvia TacchiGiulio SiracusanoMario CarpentieriGiovanni FinocchioThomas HauetOzhan OzatayNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-9 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Vedat Karakas Aisha Gokce Ali Taha Habiboglu Sevdenur Arpaci Kaan Ozbozduman Ibrahim Cinar Cenk Yanik Riccardo Tomasello Silvia Tacchi Giulio Siracusano Mario Carpentieri Giovanni Finocchio Thomas Hauet Ozhan Ozatay Observation of Magnetic Radial Vortex Nucleation in a Multilayer Stack with Tunable Anisotropy
description	Abstract Recently discovered exotic magnetic configurations, namely magnetic solitons appearing in the presence of bulk or interfacial Dzyaloshinskii-Moriya Interaction (i-DMI), have excited scientists to explore their potential applications in emerging spintronic technologies such as race-track magnetic memory, spin logic, radio frequency nano-oscillators and sensors. Such studies are motivated by their foreseeable advantages over conventional micro-magnetic structures due to their small size, topological stability and easy spin-torque driven manipulation with much lower threshold current densities giving way to improved storage capacity, and faster operation with efficient use of energy. In this work, we show that in the presence of i-DMI in Pt/CoFeB/Ti multilayers by tuning the magnetic anisotropy (both in-plane and perpendicular-to-plane) via interface engineering and postproduction treatments, we can stabilize a variety of magnetic configurations such as Néel skyrmions, horseshoes and most importantly, the recently predicted isolated radial vortices at room temperature and under zero bias field. Especially, the radial vortex state with its absolute convergence to or divergence from a single point can potentially offer exciting new applications such as particle trapping/detrapping in addition to magnetoresistive memories with efficient switching, where the radial vortex state can act as a source of spin-polarized current with radial polarization.
format	article
author	Vedat Karakas Aisha Gokce Ali Taha Habiboglu Sevdenur Arpaci Kaan Ozbozduman Ibrahim Cinar Cenk Yanik Riccardo Tomasello Silvia Tacchi Giulio Siracusano Mario Carpentieri Giovanni Finocchio Thomas Hauet Ozhan Ozatay
author_facet	Vedat Karakas Aisha Gokce Ali Taha Habiboglu Sevdenur Arpaci Kaan Ozbozduman Ibrahim Cinar Cenk Yanik Riccardo Tomasello Silvia Tacchi Giulio Siracusano Mario Carpentieri Giovanni Finocchio Thomas Hauet Ozhan Ozatay
author_sort	Vedat Karakas
title	Observation of Magnetic Radial Vortex Nucleation in a Multilayer Stack with Tunable Anisotropy
title_short	Observation of Magnetic Radial Vortex Nucleation in a Multilayer Stack with Tunable Anisotropy
title_full	Observation of Magnetic Radial Vortex Nucleation in a Multilayer Stack with Tunable Anisotropy
title_fullStr	Observation of Magnetic Radial Vortex Nucleation in a Multilayer Stack with Tunable Anisotropy
title_full_unstemmed	Observation of Magnetic Radial Vortex Nucleation in a Multilayer Stack with Tunable Anisotropy
title_sort	observation of magnetic radial vortex nucleation in a multilayer stack with tunable anisotropy
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/870eea367f1c439099e18f77957d908f
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Observation of Magnetic Radial Vortex Nucleation in a Multilayer Stack with Tunable Anisotropy

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