Domain wall pinning and controlled magnetic switching in narrow ferromagnetic ring structures with notches (invited)

Publication type:
Journal article
Metadata:
Autoren
  • M Kläui
  • CAF Vaz
  • JAC Bland
  • W Wernsdorfer
  • G Faini
  • E Cambril
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000182822600084&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1063/1.1557758
Externe Identifier
  • Clarivate Analytics Document Solution ID: 677TA
ISSN
0021-8979
Ausgabe der Veröffentlichung
10
Zeitschrift
JOURNAL OF APPLIED PHYSICS
Paginierung
7885 - 7890
Datum der Veröffentlichung
2003
Status
Published
Titel
Domain wall pinning and controlled magnetic switching in narrow ferromagnetic ring structures with notches (invited)
Sub types
  • Article
Ausgabe der Zeitschrift
93

Data source: Web of Science (Lite)

Other metadata sources:
Abstract
<jats:p>We present a magnetoresistance study of controlled spin switching and domain wall pinning effects in mesoscopic narrow ferromagnetic Permalloy ring structures containing notches. It is found that notches create an attractive potential well for the transverse domain walls present in these structures. The strength and size of this potential well is measured and found to stretch far beyond the physical dimensions of the notch. Measuring the resistance, a minimum at remanence is found to occur when a transverse domain wall is pinned at the notch, in agreement with the results of numerical simulations of the anisotropic magnetoresistance. Applying a field in the direction corresponding to a potential well edge, a magnetic state with a very wide domain wall is stabilized, leading to a dip in the magnetoresistance at such angles. Using notches of different sizes, it is demonstrated that controlled switching is achieved, which means that the circulation direction of the vortex state can be selected.</jats:p>
Autoren
  • M Kläui
  • CAF Vaz
  • JAC Bland
  • W Wernsdorfer
  • G Faini
  • E Cambril
DOI
10.1063/1.1557758
eISSN
1089-7550
ISSN
0021-8979
Ausgabe der Veröffentlichung
10
Zeitschrift
Journal of Applied Physics
Sprache
en
Paginierung
7885 - 7890
Datum der Veröffentlichung
2003
Status
Published
Herausgeber
AIP Publishing
Herausgeber URL
http://dx.doi.org/10.1063/1.1557758
Datum der Datenerfassung
2024
Titel
Domain wall pinning and controlled magnetic switching in narrow ferromagnetic ring structures with notches (invited)
Ausgabe der Zeitschrift
93

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