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Direct imaging of current induced magnetic vortex gyration in an asymmetric potential well

Andre Bisig, Jan Rhensius, Matthias Kammerer, Michael Curcic, Hermann Stoll, Gisela Schutz, Bartel Van Waeyenberge UGent, Kang Wei Chou, Tolek Tyliszczak and Laura J Heyderman, et al. (2010) APPLIED PHYSICS LETTERS. 96(15).
abstract
Employing time-resolved x-ray microscopy, we investigate the dynamics of a pinned magnetic vortex domain wall in a magnetic nanowire. The gyrotropic motion of the vortex core is imaged in response to an exciting ac current. The elliptical vortex core trajectory at resonance reveals asymmetries in the local potential well that are correlated with the pinning geometry. Using the analytical model of a two-dimensional harmonic oscillator, we determine the resonance frequency of the vortex core gyration and, from the eccentricity of the vortex core trajectory at resonance, we can deduce the stiffness of the local potential well.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
DOMAIN-WALL MOTION, elastic constants, DYNAMICS, magnetic domain walls, magnetic structure, nanomagnetics, nanowires, Permalloy, time resolved spectroscopy, X-ray microscopy
journal title
APPLIED PHYSICS LETTERS
Appl. Phys. Lett.
volume
96
issue
15
article_number
152506
pages
3 pages
Web of Science type
Article
Web of Science id
000276794100046
JCR category
PHYSICS, APPLIED
JCR impact factor
3.82 (2010)
JCR rank
14/116 (2010)
JCR quartile
1 (2010)
ISSN
0003-6951
DOI
10.1063/1.3373590
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1245295
handle
http://hdl.handle.net/1854/LU-1245295
date created
2011-05-27 11:27:32
date last changed
2011-06-10 12:45:10
@article{1245295,
  abstract     = {Employing time-resolved x-ray microscopy, we investigate the dynamics of a pinned magnetic vortex domain wall in a magnetic nanowire. The gyrotropic motion of the vortex core is imaged in response to an exciting ac current. The elliptical vortex core trajectory at resonance reveals asymmetries in the local potential well that are correlated with the pinning geometry. Using the analytical model of a two-dimensional harmonic oscillator, we determine the resonance frequency of the vortex core gyration and, from the eccentricity of the vortex core trajectory at resonance, we can deduce the stiffness of the local potential well.},
  articleno    = {152506},
  author       = {Bisig, Andre and Rhensius, Jan and Kammerer, Matthias and Curcic, Michael and Stoll, Hermann and Schutz, Gisela and Van Waeyenberge, Bartel and Chou, Kang Wei and Tyliszczak, Tolek and Heyderman, Laura J and Krzyk, Stephen and von Bieren, Arndt and Klaui, Mathias},
  issn         = {0003-6951},
  journal      = {APPLIED PHYSICS LETTERS},
  keyword      = {DOMAIN-WALL MOTION,elastic constants,DYNAMICS,magnetic domain walls,magnetic structure,nanomagnetics,nanowires,Permalloy,time resolved spectroscopy,X-ray microscopy},
  language     = {eng},
  number       = {15},
  pages        = {3},
  title        = {Direct imaging of current induced magnetic vortex gyration in an asymmetric potential well},
  url          = {http://dx.doi.org/10.1063/1.3373590},
  volume       = {96},
  year         = {2010},
}

Chicago
Bisig, Andre, Jan Rhensius, Matthias Kammerer, Michael Curcic, Hermann Stoll, Gisela Schutz, Bartel Van Waeyenberge, et al. 2010. “Direct Imaging of Current Induced Magnetic Vortex Gyration in an Asymmetric Potential Well.” Applied Physics Letters 96 (15).
APA
Bisig, A., Rhensius, J., Kammerer, M., Curcic, M., Stoll, H., Schutz, G., Van Waeyenberge, B., et al. (2010). Direct imaging of current induced magnetic vortex gyration in an asymmetric potential well. APPLIED PHYSICS LETTERS, 96(15).
Vancouver
1.
Bisig A, Rhensius J, Kammerer M, Curcic M, Stoll H, Schutz G, et al. Direct imaging of current induced magnetic vortex gyration in an asymmetric potential well. APPLIED PHYSICS LETTERS. 2010;96(15).
MLA
Bisig, Andre, Jan Rhensius, Matthias Kammerer, et al. “Direct Imaging of Current Induced Magnetic Vortex Gyration in an Asymmetric Potential Well.” APPLIED PHYSICS LETTERS 96.15 (2010): n. pag. Print.