Imaging of Domain Wall Inertia in Permalloy Half-Ring Nanowires by Time-Resolved Photoemission Electron Microscopy

Rhensius, Jan; Heyne, Lutz; Backes, Dirk; Krzyk, Stephen; Heyderman, Laura Jane; Joly, L.; Nolting, Frithjof; Kläui, Mathias

Imaging of Domain Wall Inertia in Permalloy Half-Ring Nanowires by Time-Resolved Photoemission Electron Microscopy

Files

2010_PhysRevLett_Imaging.pdf(1.48 MB)

Date

2010

Authors

Rhensius, Jan

Heyne, Lutz

Backes, Dirk

Krzyk, Stephen

Heyderman, Laura Jane

Joly, L.

Nolting, Frithjof

Kläui, Mathias

Publication type

Journal article

Published in

Physical Review Letters ; 104 (2010). - 067201

Abstract

Using photoemission electron microscopy, we image the dynamics of a field pulse excited domain wall in a Permalloy nanowire. We find a delay in the onset of the wall motion with respect to the excitation and an oscillatory relaxation of the domain wall back to its equilibrium position, defined by an external magnetic field. The origin of both of these inertia effects is the transfer of energy between energy reservoirs. By imaging the distribution of the exchange energy in the wall spin structure, we determine these reservoirs, which are the basis of the domain wall mass concept.

Subject (DDC)

530 Physics

Cite This

ISO 690

RHENSIUS, Jan, Lutz HEYNE, Dirk BACKES, Stephen KRZYK, Laura Jane HEYDERMAN, L. JOLY, Frithjof NOLTING, Mathias KLÄUI, 2010. Imaging of Domain Wall Inertia in Permalloy Half-Ring Nanowires by Time-Resolved Photoemission Electron Microscopy. In: Physical Review Letters. 104, 067201. Available under: doi: 10.1103/PhysRevLett.104.067201

BibTex

@article{Rhensius2010Imagi-9129,
  year={2010},
  doi={10.1103/PhysRevLett.104.067201},
  title={Imaging of Domain Wall Inertia in Permalloy Half-Ring Nanowires by Time-Resolved Photoemission Electron Microscopy},
  volume={104},
  journal={Physical Review Letters},
  author={Rhensius, Jan and Heyne, Lutz and Backes, Dirk and Krzyk, Stephen and Heyderman, Laura Jane and Joly, L. and Nolting, Frithjof and Kläui, Mathias},
  note={Article Number: 067201}
}

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