SwePub
Sök i LIBRIS databas

  Extended search

onr:"swepub:oai:gup.ub.gu.se/278717"
 

Search: onr:"swepub:oai:gup.ub.gu.se/278717" > Excitation of Whisp...

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist

Excitation of Whispering Gallery Magnons in a Magnetic Vortex

Schultheiss, K. (author)
Verba, R. (author)
Wehrmann, F. (author)
show more...
Wagner, K. (author)
Körber, L. (author)
Hula, T. (author)
Hache, T. (author)
Kákay, A. (author)
Awad, Ahmad (author)
Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
Tiberkevich, V. (author)
Slavin, A. N. (author)
Fassbender, J. (author)
Schultheiss, H. (author)
show less...
 (creator_code:org_t)
2019
2019
English.
In: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 122
  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • We present the generation of whispering gallery magnons with unprecedented high wave vectors via nonlinear 3-magnon scattering in a μm-sized magnetic Ni81Fe19 disc which is in the vortex state. These modes exhibit a strong localization at the perimeter of the disc and practically zero amplitude in an extended area around the vortex core. They originate from the splitting of the fundamental radial magnon modes, which can be resonantly excited in a vortex texture by an out-of-plane microwave field. We shed light on the basics of this nonlinear scattering mechanism from an experimental and theoretical point of view. Using Brillouin light scattering microscopy, we investigated the frequency and power dependence of the 3-magnon splitting. The spatially resolved mode profiles give evidence for the localization at the boundaries of the disc and allow for a direct determination of the modes wave number.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences (hsv//eng)
NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
TEKNIK OCH TEKNOLOGIER  -- Nanoteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Nano-technology (hsv//eng)

Keyword

whispering gallery
magnons
Spintronics
Brillouin light scattering

Publication and Content Type

ref (subject category)
art (subject category)

Find in a library

To the university's database

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Close

Copy and save the link in order to return to this view