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Journal of Materials Science
Published in: Journal of Materials Science 5/2018

13-11-2017 | Ceramics

Anisotropic ferromagnetism in Fe x Sn1−x O2 nanostructure arrays

Authors: Shutian Chen, Zhengcao Li, Zhengjun Zhang

Published in: Journal of Materials Science | Issue 5/2018

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Abstract

Periodic arrays of Fe x Sn1−x O2 nanostructures were fabricated by glancing angle sputter deposition onto self-assembled close-packed arrays of 200-nm-diameter polystyrene microspheres. After annealing at 873 K for 3 h, all the films were crystallized to rutile SnO2 and maintained good thermal stability in the morphology. Compared with Fe x Sn1−x O2 flat films, arrays of Fe x Sn1−x O2 nanostructures possessed larger saturation magnetic moment and exhibited both perpendicular and in-plane magnetic anisotropy, resulting from the anisotropic morphology of Fe x Sn1−x O2 nanostructures. The EPR signal originating from the oxygen vacancies significantly varied with the Fe concentration and reached the strongest at x = 0.059, which is consistent with the saturation magnetization. It demonstrates that the oxygen vacancies are an important factor for the ferromagnetism of Fe x Sn1−x O2 films.
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Metadata
Title
Anisotropic ferromagnetism in Fe x Sn1−x O2 nanostructure arrays
Authors
Shutian Chen
Zhengcao Li
Zhengjun Zhang
Publication date
13-11-2017
Publisher
Springer US
Published in
Journal of Materials Science / Issue 5/2018
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-017-1804-0

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