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

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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

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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.

KW - Hexaferrites

KW - Magnetocrystalline anisotropy

KW - Multiferroics

KW - Neutron diffraction

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10.1016/j.physb.2017.11.067