Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Direct observation of a propagating spin wave induced by spin-transfer torque
Show others and affiliations
2011 (English)In: Nature Nanotechnology, ISSN 1748-3387, E-ISSN 1748-3395, Vol. 6, no 10, 635-638 p.Article in journal (Refereed) Published
Abstract [en]

Spin torque oscillators with nanoscale electrical contacts(1-4) are able to produce coherent spin waves in extended magnetic films, and offer an attractive combination of electrical and magnetic field control, broadband operation(5,6), fast spin-wave frequency modulation(7-9), and the possibility of synchronizing multiple spin-wave injection sites(10,11). However, many potential applications rely on propagating (as opposed to localized) spin waves, and direct evidence for propagation has been lacking. Here, we directly observe a propagating spin wave launched from a spin torque oscillator with a nanoscale electrical contact into an extended Permalloy (nickel iron) film through the spin transfer torque effect. The data, obtained by wave-vector-resolved micro-focused Brillouin light scattering, show that spin waves with tunable frequencies can propagate for several micrometres. Micromagnetic simulations provide the theoretical support to quantitatively reproduce the results.

Place, publisher, year, edition, pages
2011. Vol. 6, no 10, 635-638 p.
Keyword [en]
NANO-OSCILLATORS, MAGNETIC MULTILAYERS, PHASE-LOCKING, DEVICES
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-47985DOI: 10.1038/NNANO.2011.140ISI: 000295923800011Scopus ID: 2-s2.0-80455174647OAI: oai:DiVA.org:kth-47985DiVA: diva2:456978
Funder
EU, FP7, Seventh Framework Programme, FP7/2007-2013 228673Swedish Research CouncilKnut and Alice Wallenberg Foundation
Note
QC 20111116Available from: 2011-11-16 Created: 2011-11-15 Last updated: 2017-12-08Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Yar, Mazher Ahmed
By organisation
Functional Materials, FNM
In the same journal
Nature Nanotechnology
Materials Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 76 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf