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

Research output: Contribution to journalArticlepeer-review

24 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 languageEnglish
Article number104708
Journaljournal of the physical society of japan
Volume84
Issue number10
DOIs
Publication statusPublished - 2015 Oct 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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