Magnetic vortex dynamics on a picoseconds timescale in a hexagonal Permalloy pattern

Je Ho Shim; Dong Hyun Kim; Brooke Mesler; Jung Hwan Moon; Kyoung Jin Lee; Erik Anderson; Peter Fischer

doi:10.1063/1.3358223

Magnetic vortex dynamics on a picoseconds timescale in a hexagonal Permalloy pattern

Je Ho Shim, Dong Hyun Kim, Brooke Mesler, Jung Hwan Moon, Kyoung Jin Lee, Erik Anderson, Peter Fischer

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

We observed a motion of magnetic vortex core in a hexagonal Permalloy pattern by means of soft x-ray microscopy. Pump-probe stroboscopic observation on a picosecond timescale has been carried out after exciting a ground state vortex structure by an external field pulse of 1 ns duration. Vortex core is excited off from the center position of the hexagonal pattern but the analysis of the core trajectory reveals that the motion is nongyrotropic.

Original language	English
Article number	09D302
Journal	Journal of Applied Physics
Volume	107
Issue number	9
DOIs	https://doi.org/10.1063/1.3358223
Publication status	Published - 2010 May 1

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.3358223

Cite this

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abstract = "We observed a motion of magnetic vortex core in a hexagonal Permalloy pattern by means of soft x-ray microscopy. Pump-probe stroboscopic observation on a picosecond timescale has been carried out after exciting a ground state vortex structure by an external field pulse of 1 ns duration. Vortex core is excited off from the center position of the hexagonal pattern but the analysis of the core trajectory reveals that the motion is nongyrotropic.",

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AU - Shim, Je Ho

AU - Kim, Dong Hyun

AU - Mesler, Brooke

AU - Moon, Jung Hwan

AU - Lee, Kyoung Jin

AU - Anderson, Erik

AU - Fischer, Peter

PY - 2010/5/1

Y1 - 2010/5/1

N2 - We observed a motion of magnetic vortex core in a hexagonal Permalloy pattern by means of soft x-ray microscopy. Pump-probe stroboscopic observation on a picosecond timescale has been carried out after exciting a ground state vortex structure by an external field pulse of 1 ns duration. Vortex core is excited off from the center position of the hexagonal pattern but the analysis of the core trajectory reveals that the motion is nongyrotropic.

AB - We observed a motion of magnetic vortex core in a hexagonal Permalloy pattern by means of soft x-ray microscopy. Pump-probe stroboscopic observation on a picosecond timescale has been carried out after exciting a ground state vortex structure by an external field pulse of 1 ns duration. Vortex core is excited off from the center position of the hexagonal pattern but the analysis of the core trajectory reveals that the motion is nongyrotropic.

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Magnetic vortex dynamics on a picoseconds timescale in a hexagonal Permalloy pattern

Abstract

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