Magnetism in Ni-doped SnO2 thin films

Transparent Ni-doped SnO2 thin films grown by the pulsed laser deposition technique on LaAlO3, SrTiO3 as well as R-cut Al2O3 substrates all show room-temperature ferromagnetism (FM). While the Ni-doped SnO2 films on LaAlO3 substrates have a large magnetic moment of about 2 D*mB/Ni, films grown under...

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Bibliographic Details
Published in:Journal of physics. Condensed matter 2005-10, Vol.17 (41), p.6533-6538
Main Authors: Hong, Nguyen Hoa, Ruyter, Antoine, Prellier, W, Sakai, Joe, Huong, Ngo Thu
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Magnetic properties and materials
Magnetic properties of monolayers and thin films
Magnetic properties of surface, thin films and multilayers
Physics
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Summary:Transparent Ni-doped SnO2 thin films grown by the pulsed laser deposition technique on LaAlO3, SrTiO3 as well as R-cut Al2O3 substrates all show room-temperature ferromagnetism (FM). While the Ni-doped SnO2 films on LaAlO3 substrates have a large magnetic moment of about 2 D*mB/Ni, films grown under the same conditions on SrTiO3 and Al2O3 substrates have a magnetic moment of one order smaller. Magnetic force microscopy measurements confirmed that the Ni:SnO2 films on LaAlO3 are magnetically homogeneous at nanometre-scales, and the FM in the films comes from the doped matrix.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/17/41/022