Vortex core switching by coherent excitation with single in-plane magnetic field pulses

Markus Weigand; Bartel Van Waeyenberge; Arne Vansteenkiste; Michael Curcic; Vitalij Sackmann; Hermann Stoll; Tolek Tyliszczak; Konstantine Kaznatcheev; Drew Bertwistle; Georg Woltersdorf; Christian H. Back; Gisela Schütz

doi:10.1103/PhysRevLett.102.077201

Vortex core switching by coherent excitation with single in-plane magnetic field pulses

Markus Weigand
, Bartel Van Waeyenberge
, Arne Vansteenkiste
, Michael Curcic
, Vitalij Sackmann
, Hermann Stoll
, Tolek Tyliszczak
, Konstantine Kaznatcheev
, Drew Bertwistle
, Georg Woltersdorf
, Christian H. Back
, Gisela Schütz

Max Planck Institute for Intelligent Systems
Ghent University
Lawrence Berkeley National Laboratory
Canadian Light Source
University of Regensburg

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

98 Scopus citations

Abstract

The response of magnetic vortex cores to subnanosecond in-plane magnetic field pulses was studied by time-resolved x-ray microscopy. Vortex core reversal was observed and the switching events were located in space and time. This revealed a mechanism of coherent excitation by the leading and trailing edges of the pulse, lowering the field amplitude required for switching. The mechanism was confirmed by micromagnetic simulations and can be understood in terms of gyration around the vortex equilibrium positions, displaced by the applied field.

Original language	English
Article number	077201
Journal	Physical Review Letters
Volume	102
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevLett.102.077201
State	Published - 17 Feb 2009
Externally published	Yes

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10.1103/PhysRevLett.102.077201

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Weigand, M., Van Waeyenberge, B., Vansteenkiste, A., Curcic, M., Sackmann, V., Stoll, H., Tyliszczak, T., Kaznatcheev, K., Bertwistle, D., Woltersdorf, G., Back, C. H., & Schütz, G. (2009). Vortex core switching by coherent excitation with single in-plane magnetic field pulses. Physical Review Letters, 102(7), Article 077201. https://doi.org/10.1103/PhysRevLett.102.077201

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title = "Vortex core switching by coherent excitation with single in-plane magnetic field pulses",

abstract = "The response of magnetic vortex cores to subnanosecond in-plane magnetic field pulses was studied by time-resolved x-ray microscopy. Vortex core reversal was observed and the switching events were located in space and time. This revealed a mechanism of coherent excitation by the leading and trailing edges of the pulse, lowering the field amplitude required for switching. The mechanism was confirmed by micromagnetic simulations and can be understood in terms of gyration around the vortex equilibrium positions, displaced by the applied field.",

author = "Markus Weigand and \{Van Waeyenberge\}, Bartel and Arne Vansteenkiste and Michael Curcic and Vitalij Sackmann and Hermann Stoll and Tolek Tyliszczak and Konstantine Kaznatcheev and Drew Bertwistle and Georg Woltersdorf and Back, \{Christian H.\} and Gisela Sch{\"u}tz",

year = "2009",

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doi = "10.1103/PhysRevLett.102.077201",

language = "English",

volume = "102",

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AU - Weigand, Markus

AU - Van Waeyenberge, Bartel

AU - Vansteenkiste, Arne

AU - Curcic, Michael

AU - Sackmann, Vitalij

AU - Stoll, Hermann

AU - Tyliszczak, Tolek

AU - Kaznatcheev, Konstantine

AU - Bertwistle, Drew

AU - Woltersdorf, Georg

AU - Back, Christian H.

AU - Schütz, Gisela

PY - 2009/2/17

Y1 - 2009/2/17

N2 - The response of magnetic vortex cores to subnanosecond in-plane magnetic field pulses was studied by time-resolved x-ray microscopy. Vortex core reversal was observed and the switching events were located in space and time. This revealed a mechanism of coherent excitation by the leading and trailing edges of the pulse, lowering the field amplitude required for switching. The mechanism was confirmed by micromagnetic simulations and can be understood in terms of gyration around the vortex equilibrium positions, displaced by the applied field.

AB - The response of magnetic vortex cores to subnanosecond in-plane magnetic field pulses was studied by time-resolved x-ray microscopy. Vortex core reversal was observed and the switching events were located in space and time. This revealed a mechanism of coherent excitation by the leading and trailing edges of the pulse, lowering the field amplitude required for switching. The mechanism was confirmed by micromagnetic simulations and can be understood in terms of gyration around the vortex equilibrium positions, displaced by the applied field.

UR - https://www.scopus.com/pages/publications/61349186451

U2 - 10.1103/PhysRevLett.102.077201

DO - 10.1103/PhysRevLett.102.077201

M3 - Article

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SN - 0031-9007

VL - 102

JO - Physical Review Letters

JF - Physical Review Letters

IS - 7

M1 - 077201

ER -

Vortex core switching by coherent excitation with single in-plane magnetic field pulses

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