Change search
ReferencesLink to record
Permanent link

Direct link
CoFeB-Based Spin Hall Nano-Oscillators
Show others and affiliations
2014 (English)In: IEEE Magnetics Letters, ISSN 1949-307X, Vol. 5, 3000504- p.Article in journal (Refereed) Published
Abstract [en]

We demonstrate magnetization auto-oscillations driven by pure spin currents in spin Hall nano-oscillators based on CoFeB/Pt bilayers. Despite the very low anisotropic magnetoresistance of CoFeB, a substantial microwave signal power can be detected, even at room temperature, indicating that a sizable spin wave amplitude is generated. Spin torque ferromagnetic resonance measurements reveal that the generated auto-oscillation frequency lies below the ferromagnetic resonance frequency of CoFeB and is therefore well described by a self-localized spin wave bullet mode.

Place, publisher, year, edition, pages
2014. Vol. 5, 3000504- p.
Keyword [en]
Spin electronics, spin Hall nano-oscillators, spin torque ferromagnetic resonance, CoFeB
National Category
Other Physics Topics
URN: urn:nbn:se:kth:diva-160426DOI: 10.1109/LMAG.2014.2375155ISI: 000347916300012ScopusID: 2-s2.0-84919782894OAI: diva2:790049
Swedish Foundation for Strategic Research Swedish Research CouncilKnut and Alice Wallenberg FoundationEU, European Research Council, 307144

QC 20150223

Available from: 2015-02-23 Created: 2015-02-19 Last updated: 2015-02-23Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Åkerman, Johan
By organisation
Material Physics, MF
In the same journal
IEEE Magnetics Letters
Other Physics Topics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 34 hits
ReferencesLink to record
Permanent link

Direct link