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

Hun Chang; Hak Bong Lee; Jae Ho 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, Jae Ho 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 › peer-review

1 Citation (Scopus)

Abstract

Using single crystal neutron diffraction, we confirmed the existence of the commensurate transverse helical ordering in Ba_0.52Sr_2.48Co₂Fe₂₄O₄₁ 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
Pages (from-to)	122-126
Number of pages	5
Journal	Physica B: Condensed Matter
Volume	551
DOIs	https://doi.org/10.1016/j.physb.2017.11.067
Publication status	Published - 2018 Dec 15

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

In: Physica B: Condensed Matter, Vol. 551, 15.12.2018, p. 122-126.

Research output: Contribution to journal › Article › peer-review

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title = "Commensurate transverse helical ordering in the room-temperature magnetoelectric Co2Z hexaferrite",

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.",

keywords = "Hexaferrites, Magnetocrystalline anisotropy, Multiferroics, Neutron diffraction",

author = "Hun Chang and Lee, {Hak Bong} and Chung, {Jae Ho} and Chun, {Sae Hwan} and Shin, {Kwang Woo} and Jeon, {Byung Gu} and Kim, {Kee Hoon} and Karel Proke{\v s} and Slavomir Mat'a{\v s}",

note = "Funding Information: This research was supported by National R&D Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (grant number: NRF-2017K1A3A7A09016303 ; NRF-2016R1D1A1B03934157 ). Publisher Copyright: {\textcopyright} 2017 Elsevier B.V. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.",

year = "2018",

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doi = "10.1016/j.physb.2017.11.067",

language = "English",

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AU - Chang, Hun

AU - Lee, Hak Bong

AU - Chung, Jae Ho

AU - Chun, Sae Hwan

AU - Shin, Kwang Woo

AU - Jeon, Byung Gu

AU - Kim, Kee Hoon

AU - Prokeš, Karel

AU - Mat'aš, Slavomir

N1 - Funding Information: This research was supported by National R&D Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (grant number: NRF-2017K1A3A7A09016303 ; NRF-2016R1D1A1B03934157 ). Publisher Copyright: © 2017 Elsevier B.V. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.

PY - 2018/12/15

Y1 - 2018/12/15

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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