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Persistent URL
http://purl.org/net/epubs/work/54071696
Record Status
Checked
Record Id
54071696
Title
Enhanced ferromagnetism in Cu-Substituted ZnO nanoparticles
Contributors
R Asih
,
DA Daratika
,
F Astuti
,
MA Baqiya
,
I Watanabe
,
C Saiyasombat
,
M Kato
,
Y Koike
,
A Rusydi
,
D Darminto
Abstract
Cu-substituted ZnO thin films are known to exhibit room-temperature ferromagnetism. Herein, we report a large enhancement of ferromagnetism in nanoparticles of Zn1−xCuxO (CZOs) at x ∼ 1/8. In addition to the magnetic moment arising from the Cu 3d9 spins, these nanoparticles provide a unique platform to produce a significant number of oxygen vacancies (VOs), which gives rise to a long-range ferromagnetic order due to the interaction with the spins of Cu 3d9 through the oxygen vacancies and Cu 3d9 ligand holes. Interestingly, the highest magnetization occurs in CZO with x ≈ 0.13. Thus, our results emphasize the importance of the interplay between the Cu 3d9 spins with oxygen vacancies and Cu 3d9 ligand holes in generating a long-range ferromagnetic order.
Organisation
ISIS
,
ISIS-RIKEN
,
ISIS-MUONS
,
STFC
Keywords
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Language
English (EN)
Type
Details
URI(s)
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Year
Journal Article
Mater Chem Phys
278 (2022): 125606.
doi:10.1016/j.matchemphys.2021.125606
2022
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