Direct observation and imaging of a spin-wave soliton with p-like symmetry

S. Bonetti; R. Kukreja; Z. Chen; F. Macià; J. M. Hernàndez; A. Eklund; D. Backes; J. Frisch; J. Katine; G. Malm; S. Urazhdin; A. D. Kent; J. Stöhr; H. Ohldag; H. A. Dürr

doi:10.1038/ncomms9889

Direct observation and imaging of a spin-wave soliton with p-like symmetry

S. Bonetti, R. Kukreja, Z. Chen, F. Macià, J. M. Hernàndez, A. Eklund, D. Backes, J. Frisch, J. Katine, G. Malm, S. Urazhdin, A. D. Kent, J. Stöhr, H. Ohldag, H. A. Dürr

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

Abstract

Spin waves, the collective excitations of spins, can emerge as nonlinear solitons at the nanoscale when excited by an electrical current from a nanocontact. These solitons are expected to have essentially cylindrical symmetry (that is, s-like), but no direct experimental observation exists to confirm this picture. Using a high-sensitivity time-resolved magnetic X-ray microscopy with 50ps temporal resolution and 35nm spatial resolution, we are able to create a real-space spin-wave movie and observe the emergence of a localized soliton with a nodal line, that is, with p-like symmetry. Micromagnetic simulations explain the measurements and reveal that the symmetry of the soliton can be controlled by magnetic fields. Our results broaden the understanding of spin-wave dynamics at the nanoscale, with implications for the design of magnetic nanodevices.

Original language	English (US)
Article number	8889
Journal	Nature communications
Volume	6
DOIs	https://doi.org/10.1038/ncomms9889
State	Published - Nov 16 2015

ASJC Scopus subject areas

General Chemistry
General Biochemistry, Genetics and Molecular Biology
General Physics and Astronomy

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10.1038/ncomms9889

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title = "Direct observation and imaging of a spin-wave soliton with p-like symmetry",

abstract = "Spin waves, the collective excitations of spins, can emerge as nonlinear solitons at the nanoscale when excited by an electrical current from a nanocontact. These solitons are expected to have essentially cylindrical symmetry (that is, s-like), but no direct experimental observation exists to confirm this picture. Using a high-sensitivity time-resolved magnetic X-ray microscopy with 50ps temporal resolution and 35nm spatial resolution, we are able to create a real-space spin-wave movie and observe the emergence of a localized soliton with a nodal line, that is, with p-like symmetry. Micromagnetic simulations explain the measurements and reveal that the symmetry of the soliton can be controlled by magnetic fields. Our results broaden the understanding of spin-wave dynamics at the nanoscale, with implications for the design of magnetic nanodevices.",

author = "S. Bonetti and R. Kukreja and Z. Chen and F. Maci{\`a} and Hern{\`a}ndez, {J. M.} and A. Eklund and D. Backes and J. Frisch and J. Katine and G. Malm and S. Urazhdin and Kent, {A. D.} and J. St{\"o}hr and H. Ohldag and D{\"u}rr, {H. A.}",

year = "2015",

month = nov,

day = "16",

doi = "10.1038/ncomms9889",

language = "English (US)",

volume = "6",

journal = "Nature communications",

issn = "2041-1723",

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TY - JOUR

T1 - Direct observation and imaging of a spin-wave soliton with p-like symmetry

AU - Bonetti, S.

AU - Kukreja, R.

AU - Chen, Z.

AU - Macià, F.

AU - Hernàndez, J. M.

AU - Eklund, A.

AU - Backes, D.

AU - Frisch, J.

AU - Katine, J.

AU - Malm, G.

AU - Urazhdin, S.

AU - Kent, A. D.

AU - Stöhr, J.

AU - Ohldag, H.

AU - Dürr, H. A.

PY - 2015/11/16

Y1 - 2015/11/16

N2 - Spin waves, the collective excitations of spins, can emerge as nonlinear solitons at the nanoscale when excited by an electrical current from a nanocontact. These solitons are expected to have essentially cylindrical symmetry (that is, s-like), but no direct experimental observation exists to confirm this picture. Using a high-sensitivity time-resolved magnetic X-ray microscopy with 50ps temporal resolution and 35nm spatial resolution, we are able to create a real-space spin-wave movie and observe the emergence of a localized soliton with a nodal line, that is, with p-like symmetry. Micromagnetic simulations explain the measurements and reveal that the symmetry of the soliton can be controlled by magnetic fields. Our results broaden the understanding of spin-wave dynamics at the nanoscale, with implications for the design of magnetic nanodevices.

AB - Spin waves, the collective excitations of spins, can emerge as nonlinear solitons at the nanoscale when excited by an electrical current from a nanocontact. These solitons are expected to have essentially cylindrical symmetry (that is, s-like), but no direct experimental observation exists to confirm this picture. Using a high-sensitivity time-resolved magnetic X-ray microscopy with 50ps temporal resolution and 35nm spatial resolution, we are able to create a real-space spin-wave movie and observe the emergence of a localized soliton with a nodal line, that is, with p-like symmetry. Micromagnetic simulations explain the measurements and reveal that the symmetry of the soliton can be controlled by magnetic fields. Our results broaden the understanding of spin-wave dynamics at the nanoscale, with implications for the design of magnetic nanodevices.

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JO - Nature communications

JF - Nature communications

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ER -

Direct observation and imaging of a spin-wave soliton with p-like symmetry

Abstract

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