Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Direct observation of exchange anisotropy in the helimagnetic insulator Cu2OSeO3
 
research article

Direct observation of exchange anisotropy in the helimagnetic insulator Cu2OSeO3

Baral, Priya R.
•
Utesov, Oleg I.
•
Luo, Chen
Show more
August 9, 2023
Physical Review Research

The helical magnetic structures of cubic chiral systems are well explained by the competition among Heisen-berg exchange, Dzyaloshinskii-Moriya interaction, cubic anisotropy, and anisotropic exchange interaction (AEI). Recently, the role of the latter has been argued theoretically to be crucial for the low-temperature phase diagram of the cubic chiral magnet Cu2OSeO3, which features tilted conical and disordered skyrmion states for a specific orientation of the applied magnetic field (& mu;0 scattering in vector magnetic fields to directly quantify the strength of the AEI in Cu2OSeO3 and measure its temperature dependence. We find that the AEI continuously increases below 50 K, resulting in a conical spiral pitch variation of 10% in the (001) plane. Our results contribute to establishing the interaction space that supports tilted cone and low-temperature skyrmion state formation, facilitating the goals for both a quantitative description and eventual design of the diverse spiral states existing amongst chiral magnets. H  �� [001]). In this study, we exploit transmission resonant x-ray

  • Details
  • Metrics
Type
research article
DOI
10.1103/PhysRevResearch.5.L032019
Web of Science ID

WOS:001052924600001

Author(s)
Baral, Priya R.
Utesov, Oleg I.
Luo, Chen
Radu, Florin
Magrez, Arnaud  
White, Jonathan S.
Ukleev, Victor
Date Issued

2023-08-09

Publisher

AMER PHYSICAL SOC

Published in
Physical Review Research
Volume

5

Issue

3

Article Number

L032019

Subjects

Physics, Multidisciplinary

•

Physics

•

magnetic-structures

•

skyrmions

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
IPHYS-CGCP  
Available on Infoscience
September 11, 2023
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/200554
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés