Commensurate transverse helical ordering in the room-temperature magnetoelectric Co2Z hexaferrite
| Autor: | Hun Chang, Kwang Woo Shin, Kee Hoon Kim, Karel Prokes, S. Matas, Jae Ho Chung, Sae Hwan Chun, Byung Gu Jeon, Hak Bong Lee |
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| Rok vydání: | 2018 |
| Předmět: |
Diffraction
Materials science Magnetic structure Condensed matter physics Neutron diffraction multiferroics hexaferrites neutron diffraction magnetocrystalline anisotropy 02 engineering and technology Atmospheric temperature range 021001 nanoscience & nanotechnology Condensed Matter Physics Magnetocrystalline anisotropy 01 natural sciences Electronic Optical and Magnetic Materials Polarization density 0103 physical sciences Multiferroics Electrical and Electronic Engineering 010306 general physics 0210 nano-technology Single crystal |
| Zdroj: | Physica B: Condensed Matter. 551:122-126 |
| ISSN: | 0921-4526 |
| Popis: | Using single crystal neutron diffraction, we confirmed the existence of the commensurate transverse helical ordering in B a 0.52 Sr 2.48 C o 2 F e 24 O 41 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. |
| Databáze: | OpenAIRE |
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