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Title: Spin Vortex Resonance in Non-planar Ferromagnetic Dots

In planar structures, the vortex resonance frequency changes little as a function of an in-plane magnetic field as long as the vortex state persists. Altering the topography of the element leads to a vastly different dynamic response that arises due to the local vortex core confinement effect. In this work, we studied the magnetic excitations in non-planar ferromagnetic dots using a broadband microwave spectroscopy technique. Two distinct regimes of vortex gyration were detected depending on the vortex core position. The experimental results are in qualitative agreement with micromagnetic simulations.
Authors:
 [1] ;  [2] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Texas A & M Univ., College Station, TX (United States)
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 6; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; Applied physics; Magnetic properties and materials; Materials science
OSTI Identifier:
1356659

Ding, Junjia, Lapa, Pavel, Jain, Shikha, Khaire, Trupti, Lendinez, Sergi, Zhang, Wei, Jungfleisch, Matthias B., Posada, Christian M., Yefremenko, Volodymyr G., Pearson, John E., Hoffmann, Axel, and Novosad, Valentine. Spin Vortex Resonance in Non-planar Ferromagnetic Dots. United States: N. p., Web. doi:10.1038/srep25196.
Ding, Junjia, Lapa, Pavel, Jain, Shikha, Khaire, Trupti, Lendinez, Sergi, Zhang, Wei, Jungfleisch, Matthias B., Posada, Christian M., Yefremenko, Volodymyr G., Pearson, John E., Hoffmann, Axel, & Novosad, Valentine. Spin Vortex Resonance in Non-planar Ferromagnetic Dots. United States. doi:10.1038/srep25196.
Ding, Junjia, Lapa, Pavel, Jain, Shikha, Khaire, Trupti, Lendinez, Sergi, Zhang, Wei, Jungfleisch, Matthias B., Posada, Christian M., Yefremenko, Volodymyr G., Pearson, John E., Hoffmann, Axel, and Novosad, Valentine. 2016. "Spin Vortex Resonance in Non-planar Ferromagnetic Dots". United States. doi:10.1038/srep25196. https://www.osti.gov/servlets/purl/1356659.
@article{osti_1356659,
title = {Spin Vortex Resonance in Non-planar Ferromagnetic Dots},
author = {Ding, Junjia and Lapa, Pavel and Jain, Shikha and Khaire, Trupti and Lendinez, Sergi and Zhang, Wei and Jungfleisch, Matthias B. and Posada, Christian M. and Yefremenko, Volodymyr G. and Pearson, John E. and Hoffmann, Axel and Novosad, Valentine},
abstractNote = {In planar structures, the vortex resonance frequency changes little as a function of an in-plane magnetic field as long as the vortex state persists. Altering the topography of the element leads to a vastly different dynamic response that arises due to the local vortex core confinement effect. In this work, we studied the magnetic excitations in non-planar ferromagnetic dots using a broadband microwave spectroscopy technique. Two distinct regimes of vortex gyration were detected depending on the vortex core position. The experimental results are in qualitative agreement with micromagnetic simulations.},
doi = {10.1038/srep25196},
journal = {Scientific Reports},
number = ,
volume = 6,
place = {United States},
year = {2016},
month = {5}
}