2024-03-28T10:53:44Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00010781
2023-01-16T04:59:25Z
336:695:696
Green magnetite (Fe3O4): Unusual optical Mie scattering and magnetic isotropy of submicron-size hollow spheres
Ye, Quan-Lin
Yoshikawa, Hirofumi
Bandow, Shunji
Awaga, Kunio
open access
Copyright (2009) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior per mission of the author and the American Institute of Physics.
iron compounds
magnetic particles
magnetic structure
magnetic thin films
magneto-optical effects
Mie scattering
visible spectra
Magnetite hollow spheres with a diameter of 650 nm and shell thickness of 40 nm exhibit an unexpected green color, in contrast with usual magnetite solids appearing black. This unusual green color is interpreted in terms of the Mie scattering on the inhomogeneous and low-density structure of the hollow spheres with a characteristic diameter that is comparable to the wavelength of the visible light. Further, thin films of the hollow spheres exhibit no two-dimensional shape anisotropy, reflecting the isotropic structure of individual particles. These results indicate the potential advantages in achieving unique physical properties through constructing hollow structures.
American Institite of Physics
2009-02-11
eng
journal article
VoR
http://hdl.handle.net/2237/12624
https://nagoya.repo.nii.ac.jp/records/10781
https://doi.org/10.1063/1.3079407
APPLIED PHYSICS LETTERS
94
6
063114
063114
https://nagoya.repo.nii.ac.jp/record/10781/files/ApplPhysLett_94_063114.pdf
application/pdf
833.7 kB
2018-02-20