Magnetic domains in H-mediated Zn sub(0.9)Co sub(0.1)O microdisk arrays

In this study, we have fabricated and studied magnetic domains in the periodic H-mediated Zn sub(0.9)Co sub(0.1)O (H-ZCO) microdisk structures at room temperature with the MFM technique. The results of MFM show that the z-component of the remanent magnetic moment is uniform even though the value is...

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Bibliographic Details
Published inRSC advances Vol. 6; no. 62; pp. 57375 - 57379
Main Authors Kim, Won-Kyung, Cheon, Miyeon, Lee, Seunghun, Lee, Tae-Woo, Park, Jung Jin, Cho, Chae Ryong, Park, Chul Hong, Takeuchi, Ichiro, Jeong, Se-Young
Format Journal Article
LanguageEnglish
Published 01.06.2016
Subjects
Arrays
Dehydrogenation
Ferromagnetism
Hydrogen storage
Magnetic domains
Magnetic moment
Magnetization
Saturation
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Summary:In this study, we have fabricated and studied magnetic domains in the periodic H-mediated Zn sub(0.9)Co sub(0.1)O (H-ZCO) microdisk structures at room temperature with the MFM technique. The results of MFM show that the z-component of the remanent magnetic moment is uniform even though the value is much smaller than that of the saturation magnetic moment. In the investigation of H-ZCO microdisk arrays in different volumes, the magnetic domains observed on different sizes of the H-ZCO microdisks exhibited the same magnetic domain characteristics, perpendicular magnetization, regardless of the volume. Also, we confirmed that the ferromagnetism in the H-ZnCoO system is mediated by hydrogens with the MFM results of ZnCoO hydrogen injected and dehydrogenated.
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ISSN:2046-2069
DOI:10.1039/c6ra05746b