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Commensurate transverse helical ordering in the room-temperature magnetoelectric Co(2)Z hexaferrite
- Authors
- Chang, Hun; Lee, Hak Bong; Chung, Jae-Ho; Chun, Sae Hwan; Shin, Kwang Woo; Jeon, Byung-Gu; Kim, Kee Hoon; Prokes, Karel; Mat'as, Slavomir
- Issue Date
- 15-12월-2018
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Multiferroics; Hexaferrites; Neutron diffraction; Magnetocrystalline anisotropy
- Citation
- PHYSICA B-CONDENSED MATTER, v.551, pp.122 - 126
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICA B-CONDENSED MATTER
- Volume
- 551
- Start Page
- 122
- End Page
- 126
- ISSN
- 0921-4526
- 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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