Commensurate transverse helical ordering in the room-temperature magnetoelectric Co2Z hexaferrite

Hun Chang, Hak Bong Lee, Jaiho Chung, Sae Hwan Chun, Kwang Woo Shin, Byung Gu Jeon, Kee Hoon Kim, Karel Prokeš, Slavomir Mat'aš

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1 Citation (Scopus)

Abstract

Using single crystal neutron diffraction, we confirmed the existence of the commensurate transverse helical ordering in Ba0.52Sr2.48Co2Fe24O41 upon zero-field cooling, in which room-temperature magnetoelectric coupling has been previously observed. Its magnetic structure remained commensurate to the lattice under the external field perpendicular to the c axis. We also found the commensurate ordering to be directly responsible for the electric polarization, which is the common feature of many types of hexaferrites independently of their zero-field orderings.

Original languageEnglish
JournalPhysica B: Condensed Matter
DOIs
Publication statusAccepted/In press - 2017 Jan 1

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Keywords

  • Hexaferrites
  • Magnetocrystalline anisotropy
  • Multiferroics
  • Neutron diffraction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Chang, H., Lee, H. B., Chung, J., Chun, S. H., Shin, K. W., Jeon, B. G., Kim, K. H., Prokeš, K., & Mat'aš, S. (Accepted/In press). Commensurate transverse helical ordering in the room-temperature magnetoelectric Co2Z hexaferrite. Physica B: Condensed Matter. https://doi.org/10.1016/j.physb.2017.11.067