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Title: New magnetic phase of the chiral skyrmion material Cu2OSeO3

Abstract

The lack of inversion symmetry in the crystal lattice of magnetic materials gives rise to complex noncollinear spin orders through interactions of a relativistic nature, resulting in interesting physical phenomena, such as emergent electromagnetism. Studies of cubic chiral magnets revealed a universal magnetic phase diagram composed of helical spiral, conical spiral, and skyrmion crystal phases. We report a remarkable deviation from this universal behavior. By combining neutron diffraction with magnetization measurements, we observe a new multidomain state in Cu2OSeO3. Just below the upper critical field at which the conical spiral state disappears, the spiral wave vector rotates away from the magnetic field direction. This transition gives rise to large magnetic fluctuations. Furthermore, we clarify the physical origin of the new state and discuss its multiferroic properties.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [3];  [4]; ORCiD logo [5];  [6]; ORCiD logo [7]; ORCiD logo [8]; ORCiD logo [2];  [2]; ORCiD logo [2];  [9];  [10]
+ Show Author Affiliations
  1. Delft Univ. of Technology, Delft (The Netherlands); Nanjing Univ. of Aeronautics and Astronautics, Nanjing (China)
  2. Delft Univ. of Technology, Delft (The Netherlands)
  3. Diamond Light Source Ltd., Oxfordshire (United Kingdom)
  4. Lab. Leon Brillouin, Gif sur Yvette (France)
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  6. Max Planck Institute for Chemical Physics of Solids, Dresden (Germany)
  7. Univ. of Groningen, Groningen (Netherlands); Technical Univ. of Munich, Munich (Germany)
  8. Univ. of Groningen, Groningen (Netherlands); Univ. of Twente, Enschede (Netherlands)
  9. Univ. of Groningen, Groningen (Netherlands)
  10. Hiroshima Univ., Higashi-Hiroshima (Japan)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1479782
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Science Advances
Additional Journal Information:
Journal Volume: 4; Journal Issue: 9; Journal ID: ISSN 2375-2548
Publisher:
AAAS
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Qian, Fengjiao, Bannenberg, Lars J., Wilhelm, Heribert, Chaboussant, Grégory, Debeer-Schmitt, Lisa M., Schmidt, Marcus P., Aqeel, Aisha, Palstra, Thomas T. M., Brück, Ekkes, Lefering, Anton J. E., Pappas, Catherine, Mostovoy, Maxim, and Leonov, Andrey O. New magnetic phase of the chiral skyrmion material Cu2OSeO3. United States: N. p., 2018. Web. doi:10.1126/sciadv.aat7323.
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Qian, Fengjiao, Bannenberg, Lars J., Wilhelm, Heribert, Chaboussant, Grégory, Debeer-Schmitt, Lisa M., Schmidt, Marcus P., Aqeel, Aisha, Palstra, Thomas T. M., Brück, Ekkes, Lefering, Anton J. E., Pappas, Catherine, Mostovoy, Maxim, & Leonov, Andrey O. New magnetic phase of the chiral skyrmion material Cu2OSeO3. United States. https://doi.org/10.1126/sciadv.aat7323
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Qian, Fengjiao, Bannenberg, Lars J., Wilhelm, Heribert, Chaboussant, Grégory, Debeer-Schmitt, Lisa M., Schmidt, Marcus P., Aqeel, Aisha, Palstra, Thomas T. M., Brück, Ekkes, Lefering, Anton J. E., Pappas, Catherine, Mostovoy, Maxim, and Leonov, Andrey O. Fri . "New magnetic phase of the chiral skyrmion material Cu2OSeO3". United States. https://doi.org/10.1126/sciadv.aat7323. https://www.osti.gov/servlets/purl/1479782.
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@article{osti_1479782,
title = {New magnetic phase of the chiral skyrmion material Cu2OSeO3},
author = {Qian, Fengjiao and Bannenberg, Lars J. and Wilhelm, Heribert and Chaboussant, Grégory and Debeer-Schmitt, Lisa M. and Schmidt, Marcus P. and Aqeel, Aisha and Palstra, Thomas T. M. and Brück, Ekkes and Lefering, Anton J. E. and Pappas, Catherine and Mostovoy, Maxim and Leonov, Andrey O.},
abstractNote = {The lack of inversion symmetry in the crystal lattice of magnetic materials gives rise to complex noncollinear spin orders through interactions of a relativistic nature, resulting in interesting physical phenomena, such as emergent electromagnetism. Studies of cubic chiral magnets revealed a universal magnetic phase diagram composed of helical spiral, conical spiral, and skyrmion crystal phases. We report a remarkable deviation from this universal behavior. By combining neutron diffraction with magnetization measurements, we observe a new multidomain state in Cu2OSeO3. Just below the upper critical field at which the conical spiral state disappears, the spiral wave vector rotates away from the magnetic field direction. This transition gives rise to large magnetic fluctuations. Furthermore, we clarify the physical origin of the new state and discuss its multiferroic properties.},
doi = {10.1126/sciadv.aat7323},
journal = {Science Advances},
number = 9,
volume = 4,
place = {United States},
year = {Fri Sep 21 00:00:00 EDT 2018},
month = {Fri Sep 21 00:00:00 EDT 2018}
}
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https://doi.org/10.1126/sciadv.aat7323
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    Works referencing / citing this record:

    Multiple low-temperature skyrmionic states in a bulk chiral magnet
    journal, April 2019

    • Bannenberg, Lars J.; Wilhelm, Heribert; Cubitt, Robert
    • npj Quantum Materials, Vol. 4, Issue 1
    • DOI: 10.1038/s41535-019-0150-7

    Observation of two independent skyrmion phases in a chiral magnetic material
    journal, June 2018

    Spin-wave stiffness in the Dzyaloshinskii-Moriya helimagnet with ferrimagnetic ordering Cu 2 OSeO 3
    journal, February 2019

    Multiple low-temperature skyrmionic states in a bulk chiral magnet
    text, January 2019

    Observation of two independent skyrmion phases in a chiral magnetic material
    text, January 2021

    Observation of Magnetic Antiskyrmions in the Low Magnetization Ferrimagnet Mn 2 Rh 0.95 Ir 0.05 Sn
    journal, December 2019

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