Nanomagnetic skyrmions

Ralph Skomski; Zhen Li; Rui Zhang; Roger D. Kirby; A. Enders; D. Schmidt; T. Hofmann; E. Schubert; D. J. Sellmyer

doi:10.1063/1.3672079

Nanomagnetic skyrmions

Ralph Skomski, Zhen Li, Rui Zhang, Roger D. Kirby, A. Enders, D. Schmidt, T. Hofmann, E. Schubert, D. J. Sellmyer

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

11 Scopus citations

Abstract

Magnetic skyrmions and other topologically protected nanostructures are investigated. Since skyrmions are mathematical rather than physical objects, they describe a wide variety of physical systems, from simple magnetic domain walls to complicated quantum phases with long-range many-body entanglement. Important distinctions concern the skyrmions' relativistic character, their quantum-mechanical or classical nature, and the one- or many-body character of the wave functions. As specific examples we consider magnetic nanospirals, where the topology of a vortex-like spin state is protected by magnetostatic interactions, and edge currents in dilute magnetic semiconductors and metallic nanodots. Our analysis militates against giant orbital moments created by a mesocopically enhanced spin-orbit coupling.

Original language	English (US)
Article number	07E116
Journal	Journal of Applied Physics
Volume	111
Issue number	7
DOIs	https://doi.org/10.1063/1.3672079
State	Published - Apr 1 2012
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1063/1.3672079

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title = "Nanomagnetic skyrmions",

abstract = "Magnetic skyrmions and other topologically protected nanostructures are investigated. Since skyrmions are mathematical rather than physical objects, they describe a wide variety of physical systems, from simple magnetic domain walls to complicated quantum phases with long-range many-body entanglement. Important distinctions concern the skyrmions' relativistic character, their quantum-mechanical or classical nature, and the one- or many-body character of the wave functions. As specific examples we consider magnetic nanospirals, where the topology of a vortex-like spin state is protected by magnetostatic interactions, and edge currents in dilute magnetic semiconductors and metallic nanodots. Our analysis militates against giant orbital moments created by a mesocopically enhanced spin-orbit coupling.",

author = "Ralph Skomski and Zhen Li and Rui Zhang and Kirby, {Roger D.} and A. Enders and D. Schmidt and T. Hofmann and E. Schubert and Sellmyer, {D. J.}",

note = "Funding Information: The authors are grateful to M. Stocks and J. M. D. Coey for discussing Berry-phase effects in magnetic solids and orbital moments in dilute magnetic semiconductors, respectively. This research is supported by NSF-MRSEC (Grant No. NSF-DMR-0820521) and NCMN. ",

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AU - Skomski, Ralph

AU - Li, Zhen

AU - Zhang, Rui

AU - Kirby, Roger D.

AU - Enders, A.

AU - Schmidt, D.

AU - Hofmann, T.

AU - Schubert, E.

AU - Sellmyer, D. J.

N1 - Funding Information: The authors are grateful to M. Stocks and J. M. D. Coey for discussing Berry-phase effects in magnetic solids and orbital moments in dilute magnetic semiconductors, respectively. This research is supported by NSF-MRSEC (Grant No. NSF-DMR-0820521) and NCMN.

PY - 2012/4/1

Y1 - 2012/4/1

N2 - Magnetic skyrmions and other topologically protected nanostructures are investigated. Since skyrmions are mathematical rather than physical objects, they describe a wide variety of physical systems, from simple magnetic domain walls to complicated quantum phases with long-range many-body entanglement. Important distinctions concern the skyrmions' relativistic character, their quantum-mechanical or classical nature, and the one- or many-body character of the wave functions. As specific examples we consider magnetic nanospirals, where the topology of a vortex-like spin state is protected by magnetostatic interactions, and edge currents in dilute magnetic semiconductors and metallic nanodots. Our analysis militates against giant orbital moments created by a mesocopically enhanced spin-orbit coupling.

AB - Magnetic skyrmions and other topologically protected nanostructures are investigated. Since skyrmions are mathematical rather than physical objects, they describe a wide variety of physical systems, from simple magnetic domain walls to complicated quantum phases with long-range many-body entanglement. Important distinctions concern the skyrmions' relativistic character, their quantum-mechanical or classical nature, and the one- or many-body character of the wave functions. As specific examples we consider magnetic nanospirals, where the topology of a vortex-like spin state is protected by magnetostatic interactions, and edge currents in dilute magnetic semiconductors and metallic nanodots. Our analysis militates against giant orbital moments created by a mesocopically enhanced spin-orbit coupling.

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Nanomagnetic skyrmions

Abstract

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