Smectic Liquid-Crystalline Structure of Skyrmions in Chiral Magnet Co_{8.5}Zn_{7.5}Mn_{4}(110) Thin Film.

Journal

Physical review letters
ISSN: 1079-7114
Titre abrégé: Phys Rev Lett
Pays: United States
ID NLM: 0401141

Informations de publication

Date de publication:
27 Sep 2019
Historique:
received: 24 05 2019
entrez: 8 11 2019
pubmed: 8 11 2019
medline: 8 11 2019
Statut: ppublish

Résumé

The organizing of magnetic skyrmions shows several forms similar to atomic arrays of solid states. Using Lorentz transmission electron microscopy, we report the first direct observation of a stable liquid-crystalline structure of skyrmions in chiral magnet Co_{8.5}Zn_{7.5}Mn_{4}(110) thin film, caused by magnetic anisotropy and chiral surface twist. Elongated skyrmions are oriented and periodically arranged only in the ⟨110⟩ directions, whereas they exhibit short-range order along the ⟨001⟩ directions, indicating a smectic skyrmion state. In addition, skyrmions possess anisotropic interaction with an opposite sign depending on the crystal orientation, in contrast to existing isotropic interaction.

Identifiants

DOI: 10.1103/PhysRevLett.123.137203 PMID: 31697552
pubmed: 31697552
doi: 10.1103/PhysRevLett.123.137203
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

137203

Auteurs

T Nagase (T)

Department of Electrical, Electronic Engineering and Information Engineering, School of Engineering, Nagoya University, Nagoya 464-8601, Japan.

M Komatsu (M)

Department of Materials Science, Graduate School of Engineering Science, Akita University, Akita 010-8502, Japan.

Y G So (YG)

Department of Materials Science, Graduate School of Engineering Science, Akita University, Akita 010-8502, Japan.

T Ishida (T)

Advanced Measurement Technology Center, Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8601, Japan.

H Yoshida (H)

Department of Physics, Hokkaido University, Sapporo 060-0810, Japan.

Y Kawaguchi (Y)

Department of Applied Physics, Graduate School of Engineering, Nagoya University, Nagoya 464-8601, Japan.

Y Tanaka (Y)

Department of Applied Physics, Graduate School of Engineering, Nagoya University, Nagoya 464-8601, Japan.

K Saitoh (K)

Advanced Measurement Technology Center, Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8601, Japan.

N Ikarashi (N)

Center for Integrated Research of Future Electronics, Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8601, Japan.
Department of Electronics, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan.

M Kuwahara (M)

Advanced Measurement Technology Center, Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8601, Japan.

M Nagao (M)

Center for Integrated Research of Future Electronics, Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8601, Japan.
Department of Electronics, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan.

Classifications MeSH