Amorphous grain boundary layers in the ferromagnetic nanograined ZnO films

Pure ZnO thin films were obtained by the wet chemistry (“liquid ceramics”) method from the butanoate precursors. Films consist of dense equiaxial nanograins and reveal ferromagnetic behaviour. The structure of the ZnO films was studied by the high-resolution transmission electron microscopy. The int...

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Published inThin solid films Vol. 520; no. 4; pp. 1192 - 1194
Main Authors Straumal, B.B., Mazilkin, A.A., Protasova, S.G., Myatiev, A.A., Straumal, P.B., Goering, E., Baretzky, B.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.12.2011
Subjects
Amorphous layers
Ceramics
Ferromagnetic materials
Ferromagnetism
Grain boundaries
Liquids
Nanocomposites
Nanomaterials
Nanostructure
Zinc oxide
ZnO
Grain boundaries
ZnO
Ferromagnetism
Amorphous layers
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Summary:Pure ZnO thin films were obtained by the wet chemistry (“liquid ceramics”) method from the butanoate precursors. Films consist of dense equiaxial nanograins and reveal ferromagnetic behaviour. The structure of the ZnO films was studied by the high-resolution transmission electron microscopy. The intergranular regions in the nanograined ZnO films obtained by the “liquid ceramics” method are amorphous. It looks like fine areas of the second amorphous phase which wets (covers) some of the ZnO/ZnO grain boundaries. Most probably these amorphous intergranular regions contain the defects which are responsible for the ferromagnetic behaviour.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0040-6090
1879-2731
DOI:10.1016/j.tsf.2011.04.154