Manipulating 1-dimensional skyrmion motion by the external magnetic field gradient

Jaehun Cho; Eiiti Tamura; Chaozhe Liu; Soma Miki; Chun Yeol You; June Seo Kim; Hikaru Nomura; Minori Goto; Ryoichi Nakatani; Yoshishige Suzuki

doi:10.1088/1367-2630/abbead

Manipulating 1-dimensional skyrmion motion by the external magnetic field gradient

Jaehun Cho, Eiiti Tamura, Chaozhe Liu, Soma Miki, Chun Yeol You, June Seo Kim, Hikaru Nomura, Minori Goto, Ryoichi Nakatani, Yoshishige Suzuki

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

6 Scopus citations

Abstract

We have investigated an approximated analytic form of the one-dimensional motion of skyrmions accelerated by a gradient of the external magnetic field. We find excellent agreement between the analytical calculations and micromagnetic simulations when the skyrmion size is large. The skyrmion motion is related to not only the skyrmion size but also the skyrmion wall width. We also have performed the numerical calculation without approximation in comparison. The numerical calculation results are entirely in agreement with those of micromagnetic simulation for all the skyrmion size. These results introduce an efficient control of skyrmions to next-generation spintronic devices.

Original language	English
Article number	103053
Journal	New Journal of Physics
Volume	22
Issue number	10
DOIs	https://doi.org/10.1088/1367-2630/abbead
State	Published - Oct 2020

Bibliographical note

Publisher Copyright:
© 2020 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft.

Keywords

micromagnetic simulations
skyrmion motion
skyrmions accelerated by a gradient of the external magnetic field

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10.1088/1367-2630/abbead

Cite this

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title = "Manipulating 1-dimensional skyrmion motion by the external magnetic field gradient",

abstract = "We have investigated an approximated analytic form of the one-dimensional motion of skyrmions accelerated by a gradient of the external magnetic field. We find excellent agreement between the analytical calculations and micromagnetic simulations when the skyrmion size is large. The skyrmion motion is related to not only the skyrmion size but also the skyrmion wall width. We also have performed the numerical calculation without approximation in comparison. The numerical calculation results are entirely in agreement with those of micromagnetic simulation for all the skyrmion size. These results introduce an efficient control of skyrmions to next-generation spintronic devices.",

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author = "Jaehun Cho and Eiiti Tamura and Chaozhe Liu and Soma Miki and You, {Chun Yeol} and Kim, {June Seo} and Hikaru Nomura and Minori Goto and Ryoichi Nakatani and Yoshishige Suzuki",

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doi = "10.1088/1367-2630/abbead",

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T1 - Manipulating 1-dimensional skyrmion motion by the external magnetic field gradient

AU - Cho, Jaehun

AU - Tamura, Eiiti

AU - Liu, Chaozhe

AU - Miki, Soma

AU - You, Chun Yeol

AU - Kim, June Seo

AU - Nomura, Hikaru

AU - Goto, Minori

AU - Nakatani, Ryoichi

AU - Suzuki, Yoshishige

PY - 2020/10

Y1 - 2020/10

N2 - We have investigated an approximated analytic form of the one-dimensional motion of skyrmions accelerated by a gradient of the external magnetic field. We find excellent agreement between the analytical calculations and micromagnetic simulations when the skyrmion size is large. The skyrmion motion is related to not only the skyrmion size but also the skyrmion wall width. We also have performed the numerical calculation without approximation in comparison. The numerical calculation results are entirely in agreement with those of micromagnetic simulation for all the skyrmion size. These results introduce an efficient control of skyrmions to next-generation spintronic devices.

AB - We have investigated an approximated analytic form of the one-dimensional motion of skyrmions accelerated by a gradient of the external magnetic field. We find excellent agreement between the analytical calculations and micromagnetic simulations when the skyrmion size is large. The skyrmion motion is related to not only the skyrmion size but also the skyrmion wall width. We also have performed the numerical calculation without approximation in comparison. The numerical calculation results are entirely in agreement with those of micromagnetic simulation for all the skyrmion size. These results introduce an efficient control of skyrmions to next-generation spintronic devices.

KW - micromagnetic simulations

KW - skyrmion motion

KW - skyrmions accelerated by a gradient of the external magnetic field

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JO - New Journal of Physics

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Manipulating 1-dimensional skyrmion motion by the external magnetic field gradient

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