Journal ArticleDOI
Magnetic study on Co3O4 nanoparticles
TLDR
In this article, magnetization measurements for the Co3O4 nanoparticles were performed and their diameters were estimated to be 2 or 3 µm by using X-ray diffraction patterns.About:
This article is published in Journal of Magnetism and Magnetic Materials.The article was published on 2004-05-01. It has received 92 citations till now. The article focuses on the topics: Magnetization & Amorphous solid.read more
Citations
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Journal ArticleDOI
Structure and magnetism of cobalt-doped ZnO thin films
M. Ivill,Stephen J. Pearton,S. Rawal,Lii-Cherng P. Leu,P.W. Sadik,R. K. Das,Arthur F. Hebard,Matthew F. Chisholm,John D. Budai,David P. Norton +9 more
TL;DR: In this paper, the structure and magnetic properties of Co-doped ZnO films are discussed in relation to cobalt doping levels and growth conditions, and optical absorption measurements show a sequential increase in the Co+2 absorption peaks in these films, along with an almost linearly increasing bandgap with cobalt concentration.
Journal ArticleDOI
Synthesis and Magnetic Properties of CoO Nanoparticles
TL;DR: In this paper, pure CoO nanoparticles in the 4.5−18 nm range have been prepared by the decomposition of Co(ΙΙ) cupferronate in Decalin at 270 °C under solvothermal conditions.
Journal ArticleDOI
Synthesis, characterization, and investigation of optical and magnetic properties of cobalt oxide (Co3O4) nanoparticles
TL;DR: In this article, the structure and morphology of as-prepared Co3O4 nanoparticles were characterized by Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), energy-dispersive Xray spectroscopic (EDS), UV-vis spectroscope, Brunauer-Emmett-Teller specific surface area measurement and magnetic measurements, and thermogravimetry/differential thermal analysis.
Journal ArticleDOI
Preparation of Co3O4 nanoparticles by nonhydrolytic thermolysis of [Co(Pht)(H2O)]n polymers
TL;DR: In this paper, it was shown that the OA molecules were adsorbed on the ferromagnetic nanoparticles by chemisorption, and that the temperature-dependent magnetization curve in zero-field-cooled and fieldcooled exhibit weak ferromagnetism of the Co3O4 nanoparticles.
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Reflux synthesis of Co3O4 nanoparticles and its magnetic characterization
TL;DR: In this article, Co3O4 nanoparticles have been prepared via reflux method, as an alternative low-temperature high-yield process, starting from one single precursor.
References
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Journal ArticleDOI
The magnetic structure of Co3O4
TL;DR: In this paper, an anomalously large magnetic interaction between ions in the A sites of Co3O4 was observed by magnetic susceptibility and neutron diffraction, which was suggested that the exchange mechanism involves indirect exchange through the tightly bound octahedral complex about the Co3+ ion.
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Magnetic properties of NiO nanoparticles
Yuko Ichiyanagi,Naoto Wakabayashi,Junichiro Yamazaki,Saori Yamada,Yoshihide Kimishima,Eriko Komatsu,Hiroyuki Tajima +6 more
TL;DR: NiO nanoparticles were produced by annealing Ni(OH)2 monolayer-nanoclusters above 973 K in air and their diameters were estimated to be between 2 and 6 nm from X-ray diffraction patterns as discussed by the authors.
Journal ArticleDOI
Magnetic and structural studies of Ni(OH)2 monolayered nanoclusters
TL;DR: In this article, chemical, magnetic and structural analysis have been carried out for the precipitates obtained by mixing NiCl26H2O and Na2SiO3 mH 2O (m=0 or 9) aqueous solutions.