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

Research output: Contribution to journal › Article

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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Magnetic structure
Neutron diffraction
neutron diffraction
Single crystals
Polarization
Cooling
cooling
single crystals
room temperature
polarization
Temperature

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

Commensurate transverse helical ordering in the room-temperature magnetoelectric Co2Z hexaferrite. / Chang, Hun; Lee, Hak Bong; Chung, Jaiho; Chun, Sae Hwan; Shin, Kwang Woo; Jeon, Byung Gu; Kim, Kee Hoon; Prokeš, Karel; Mat'aš, Slavomir.

In: Physica B: Condensed Matter, 01.01.2017.

Research output: Contribution to journal › Article

Chang, H, Lee, HB, Chung, J, Chun, SH, Shin, KW, Jeon, BG, Kim, KH, Prokeš, K & Mat'aš, S 2017, '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
Chang H, Lee HB, Chung J, Chun SH, Shin KW, Jeon BG et al. Commensurate transverse helical ordering in the room-temperature magnetoelectric Co2Z hexaferrite. Physica B: Condensed Matter. 2017 Jan 1. https://doi.org/10.1016/j.physb.2017.11.067
Chang, Hun ; Lee, Hak Bong ; Chung, Jaiho ; Chun, Sae Hwan ; Shin, Kwang Woo ; Jeon, Byung Gu ; Kim, Kee Hoon ; Prokeš, Karel ; Mat'aš, Slavomir. / Commensurate transverse helical ordering in the room-temperature magnetoelectric Co2Z hexaferrite. In: Physica B: Condensed Matter. 2017.
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AU - Chung, Jaiho

AU - Chun, Sae Hwan

AU - Shin, Kwang Woo

AU - Jeon, Byung Gu

AU - Kim, Kee Hoon

AU - Prokeš, Karel

AU - Mat'aš, Slavomir

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AB - 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.

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KW - Multiferroics

KW - Neutron diffraction

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