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Please use this identifier to cite or link to this item: https://dspace.ffh.bg.ac.rs/handle/123456789/1069
Title: Particle size effect on Néel temperature in Er<inf>2</inf>O<inf>3</inf> nanopowder synthesized by thermolysis of 2, 4-pentadione complex
Authors: Blanusa, J.
Antic, B.
Kremenovic, A.
Nikolic, A. S.
Mazzerolles, L.
Mentus, Slavko 
Spasojevic, V.
Keywords: A. Nanostructures;B. Chemical synthesis;C. Transmission electron microscopy;D. Magnetic properties
Issue Date: 1-Nov-2007
Journal: Solid State Communications
Abstract: 
New synthesis routine based on thermal decomposition of an erbium complex with acetylacetonato ligand (2, 4-pentadione) was used to prepare nanosized Er2O3 with a particle size of 5 nm and a narrow size distribution. For the sake of comparison, the ultrafine- Er2O3 powder was prepared by precipitation and subsequent sintering. The magnetic susceptibility of nanosized Er2O3 indicates the antiferromagnetic ↔ paramagnetic transition at 1.8 K or lower, while in ultrafine such as in a bulk counterpart the transition was observed at noticeably higher temperature of ∼3.4 K. The decrease in Néel temperature, observed in the case of nanosized Er2O3 sample, was attributed to both particle surface and core effects. © 2007 Elsevier Ltd. All rights reserved.
URI: https://dspace.ffh.bg.ac.rs/handle/123456789/1069
ISSN: 0038-1098
DOI: 10.1016/j.ssc.2007.09.003
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University of Belgrade
Faculty of Physical Chemistry
Studentski trg 12-16
11158 Belgrade 118
PAC 105305
SERBIA
University of Belgrade Faculty of Physical Chemistry