Power and phase profiles in nano-constriction based synchronized spin hall nano-oscillators near threshold current

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dc.contributor.authorRonayne, Williamen
dc.contributor.authorSamanta, Arindamen
dc.contributor.authorAmann, Andreasen
dc.contributor.authorRoy, Saibalen
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2023-10-12T11:27:50Z
dc.date.available2023-10-12T11:27:50Z
dc.date.issued2023-09-04en
dc.description.abstractSpin Hall nano-oscillators (SHNOs) demonstrate self-sustained magnetization auto-oscillations, that have recently received much attention due to their potential for cutting-edge applications. In this work, the power and phase profiles, i.e., the complex quantized propagation dynamics of nano-constriction-based spin hall nano-oscillators (SHNOs) near the threshold current have been investigated. The SHNO generates a 12 GHz microwave frequency upon application of 2 mA direct current in presence of a 0.6 T external bias magnetic field. Power profile reveals that spin wave (SW) modes are quantized along x-axis. The phase profile reveals a complex nature of the SW modes at the dominant frequency (mostly localised at the nano-constriction region and additionally propagates from centre to the edges). Whereas SW mode of other frequencies mostly propagate towards the edge from the central nano-constriction region having a complex spiral nature. The SHNO devices, which are operational at high-frequencies, can be useful in energy-efficient tuneable microwave oscillators and neuromorphic computing.en
dc.description.sponsorshipScience Foundation Ireland (Principal Investigator Award Grant; SFI Frontiers for the Future Programme (FFP) Award Grant)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRonayne, W., Samanta, A., Amann, A. and Roy, S. (2023) 'Power and phase profiles in nano-constriction based synchronized spin hall nano-oscillators near threshold current', 2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers), Sendai, Japan, 15-19 May, pp. 1-2. doi: 10.1109/INTERMAGShortPapers58606.2023.10228501.en
dc.identifier.doi10.1109/intermagshortpapers58606.2023.10228501en
dc.identifier.endpage2en
dc.identifier.isbn979-8-3503-3836-2en
dc.identifier.isbn979-8-3503-3837-9en
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/15108
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.relation.ispartof2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers)en
dc.rights© 2023, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en
dc.subjectFerromagnetic (FM)/non-magnetic heavy metal (HM) bilayer heterostructuresen
dc.subjectMicromagnetic simulationen
dc.subjectNeuro-morphic computingen
dc.subjectSpin-orbit coupling (SOC)en
dc.subjectSpin hall nano-oscillator (SHNO)en
dc.subjectSpin wave (SW)en
dc.subjectSynchronizationen
dc.titlePower and phase profiles in nano-constriction based synchronized spin hall nano-oscillators near threshold currenten
dc.typeConference itemen
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