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

Chemistry(all)
Biochemistry, Genetics and Molecular Biology(all)
Physics and Astronomy(all)

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10.1038/ncomms9889

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@article{e18847ffc9fc4cecb00f5e84c3a7bf5e,

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.}",

note = "Funding Information: We are grateful to the accelerator physicists at SSRL, in particular to James Safranek, Xiaobiao Huang, Jim Sebek and Jeff Corbett for the invaluable help and support provided towards the realization of this experiment. We acknowledge Fred B. Mancoff and Renu Whig at the Everspin Technologies for the help provided with samples fabrication. We acknowledge useful discussions with Andrei Slavin, Vasyl Tyberkevich, Randy Dumas and Johan {\AA}kerman. This work is supported by the Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division, under Contract DE-AC02-76SF00515. Use of the Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, is supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-76SF00515. S.B. acknowledges support from the Knut and Alice Wallenberg Foundation and from the Swedish Research Council. F.M. acknowledges support from the Catalan Government through COFUND-FP7. J.M.H. and F.M. also acknowledge support from MAT2011-23698. Research at NYU was supported by NSF-DMR-1309202. A.E. and G.M. acknowledge support from the Swedish Research Council (VR) under contract 2012-5372. A.E. also acknowledges support from the {\AA}forsk Foundation and the Travel Stipends in Honour of Nils and Hans Backmark. Publisher Copyright: {\textcopyright} 2015 Macmillan Publishers Limited. All rights reserved.",

year = "2015",

month = nov,

day = "16",

doi = "10.1038/ncomms9889",

language = "English (US)",

volume = "6",

journal = "Nature Communications",

issn = "2041-1723",

publisher = "Nature Publishing Group",

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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.

N1 - Funding Information: We are grateful to the accelerator physicists at SSRL, in particular to James Safranek, Xiaobiao Huang, Jim Sebek and Jeff Corbett for the invaluable help and support provided towards the realization of this experiment. We acknowledge Fred B. Mancoff and Renu Whig at the Everspin Technologies for the help provided with samples fabrication. We acknowledge useful discussions with Andrei Slavin, Vasyl Tyberkevich, Randy Dumas and Johan Åkerman. This work is supported by the Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division, under Contract DE-AC02-76SF00515. Use of the Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, is supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-76SF00515. S.B. acknowledges support from the Knut and Alice Wallenberg Foundation and from the Swedish Research Council. F.M. acknowledges support from the Catalan Government through COFUND-FP7. J.M.H. and F.M. also acknowledge support from MAT2011-23698. Research at NYU was supported by NSF-DMR-1309202. A.E. and G.M. acknowledge support from the Swedish Research Council (VR) under contract 2012-5372. A.E. also acknowledges support from the Åforsk Foundation and the Travel Stipends in Honour of Nils and Hans Backmark. Publisher Copyright: © 2015 Macmillan Publishers Limited. All rights reserved.

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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U2 - 10.1038/ncomms9889

DO - 10.1038/ncomms9889

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JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

M1 - 8889

ER -

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

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