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|Title:||Size-dependent magnetism and spin-glass behavior of amorphous NiO bulk, clusters, and nanocrystals: Experiments and first-principles calculations||Authors:||Yi, J.B.
|Issue Date:||5-Dec-2007||Citation:||Yi, J.B., Ding, J., Feng, Y.P., Peng, G.W., Chow, G.M., Kawazoe, Y., Liu, B.H., Yin, J.H., Thongmee, S. (2007-12-05). Size-dependent magnetism and spin-glass behavior of amorphous NiO bulk, clusters, and nanocrystals: Experiments and first-principles calculations. Physical Review B - Condensed Matter and Materials Physics 76 (22) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevB.76.224402||Abstract:||A combined experimental and computational study was carried out to investigate magnetic properties of NiO nanostructures. Remarkable size-dependent magnetism was discovered. Uniform amorphous NiO showed a dominated antiferromagnetic interaction and an ordering temperature of 3.5 K. NiO clusters (up to 1 nm) tend to be ferromagnetic interaction with an ordering temperature of 35 K, accompanied by high magnetization (105 emu g) and a spin-glass behavior. NiO nanocrystals (>2 nm) were found to be antiferromagnetic with uncompensated surface magnetization and shifted hysteresis due to the core-shell interactions. © 2007 The American Physical Society.||Source Title:||Physical Review B - Condensed Matter and Materials Physics||URI:||http://scholarbank.nus.edu.sg/handle/10635/52630||ISSN:||10980121||DOI:||10.1103/PhysRevB.76.224402|
|Appears in Collections:||Staff Publications|
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