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

doi:10.1016/j.physb.2017.11.067

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

Department of Physics

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 language	English
Journal	Physica B: Condensed Matter
DOIs	https://doi.org/10.1016/j.physb.2017.11.067
Publication status	Accepted/In press - 2017 Jan 1

Keywords

Hexaferrites
Magnetocrystalline anisotropy
Multiferroics
Neutron diffraction

ASJC Scopus subject areas

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

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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

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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.",

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AU - Chang, Hun

AU - Lee, Hak Bong

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

PY - 2017/1/1

Y1 - 2017/1/1

N2 - 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.

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 - Magnetocrystalline anisotropy

KW - Multiferroics

KW - Neutron diffraction

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