Formation of in-plane skyrmions in epitaxial MnSi thin films as revealed by planar Hall effect

Tomoyuki Yokouchi; Naoya Kanazawa; Atsushi Tsukazaki; Yusuke Kozuka; Akiko Kikkawa; Yasujiro Taguchi; Masashi Kawasaki; Masakazu Ichikawa; Fumitaka Kagawa; Yoshinori Tokura

doi:10.7566/JPSJ.84.104708

Formation of in-plane skyrmions in epitaxial MnSi thin films as revealed by planar Hall effect

Tomoyuki Yokouchi, Naoya Kanazawa, Atsushi Tsukazaki, Yusuke Kozuka, Akiko Kikkawa, Yasujiro Taguchi, Masashi Kawasaki, Masakazu Ichikawa, Fumitaka Kagawa, Yoshinori Tokura

Materials Property Division

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

32 Citations (Scopus)

Abstract

We investigate skyrmion formation in both a single crystalline bulk and epitaxial thin films of MnSi by measurements of planar Hall effect. A prominent stepwise field profile of planar Hall effect is observed in the well-established skyrmion phase region in the bulk sample, which is assigned to anisotropic magnetoresistance effect with respect to the magnetic modulation direction. We also detect the characteristic planar Hall anomalies in the thin films under the in-plane magnetic field at low temperatures, which indicates the formation of skyrmion strings lying in the film plane. Uniaxial magnetic anisotropy plays an important role in stabilizing the in-plane skyrmions in the MnSi thin film.

Original language	English
Article number	104708
Journal	journal of the physical society of japan
Volume	84
Issue number	10
DOIs	https://doi.org/10.7566/JPSJ.84.104708
Publication status	Published - 2015 Oct 15

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Formation of in-plane skyrmions in epitaxial MnSi thin films as revealed by planar Hall effect",

abstract = "We investigate skyrmion formation in both a single crystalline bulk and epitaxial thin films of MnSi by measurements of planar Hall effect. A prominent stepwise field profile of planar Hall effect is observed in the well-established skyrmion phase region in the bulk sample, which is assigned to anisotropic magnetoresistance effect with respect to the magnetic modulation direction. We also detect the characteristic planar Hall anomalies in the thin films under the in-plane magnetic field at low temperatures, which indicates the formation of skyrmion strings lying in the film plane. Uniaxial magnetic anisotropy plays an important role in stabilizing the in-plane skyrmions in the MnSi thin film.",

author = "Tomoyuki Yokouchi and Naoya Kanazawa and Atsushi Tsukazaki and Yusuke Kozuka and Akiko Kikkawa and Yasujiro Taguchi and Masashi Kawasaki and Masakazu Ichikawa and Fumitaka Kagawa and Yoshinori Tokura",

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T1 - Formation of in-plane skyrmions in epitaxial MnSi thin films as revealed by planar Hall effect

AU - Yokouchi, Tomoyuki

AU - Kanazawa, Naoya

AU - Tsukazaki, Atsushi

AU - Kozuka, Yusuke

AU - Kikkawa, Akiko

AU - Taguchi, Yasujiro

AU - Kawasaki, Masashi

AU - Ichikawa, Masakazu

AU - Kagawa, Fumitaka

AU - Tokura, Yoshinori

PY - 2015/10/15

Y1 - 2015/10/15

N2 - We investigate skyrmion formation in both a single crystalline bulk and epitaxial thin films of MnSi by measurements of planar Hall effect. A prominent stepwise field profile of planar Hall effect is observed in the well-established skyrmion phase region in the bulk sample, which is assigned to anisotropic magnetoresistance effect with respect to the magnetic modulation direction. We also detect the characteristic planar Hall anomalies in the thin films under the in-plane magnetic field at low temperatures, which indicates the formation of skyrmion strings lying in the film plane. Uniaxial magnetic anisotropy plays an important role in stabilizing the in-plane skyrmions in the MnSi thin film.

AB - We investigate skyrmion formation in both a single crystalline bulk and epitaxial thin films of MnSi by measurements of planar Hall effect. A prominent stepwise field profile of planar Hall effect is observed in the well-established skyrmion phase region in the bulk sample, which is assigned to anisotropic magnetoresistance effect with respect to the magnetic modulation direction. We also detect the characteristic planar Hall anomalies in the thin films under the in-plane magnetic field at low temperatures, which indicates the formation of skyrmion strings lying in the film plane. Uniaxial magnetic anisotropy plays an important role in stabilizing the in-plane skyrmions in the MnSi thin film.

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Formation of in-plane skyrmions in epitaxial MnSi thin films as revealed by planar Hall effect

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