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Issue 1, 2011
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Superantiferromagnetic EuTe nanoparticles: room temperature colloidal synthesis, structural characterization, and magnetic properties

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Abstract

In this communication, EuTe nanoparticles with different size distributions have been synthesized for the first time at room temperature by injection of ethylene glycol solution of Na2Te into ethylene glycol solution of EuCl2 in the presence of triethanolamine. By adding phenanthroline into EuCl2 solution, EuTe nanospindles have also been synthesized. The as-synthesized EuTe nanocrystals show size-dependent optical properties. Low-temperature magnetic measurements show that 6.5 nm EuTe nanoparticles show pronounced superantiferromagnetic transition between 2 K and 20 K. Our facile synthesis route opens up the opportunity of studying and applying this classical Heisenberg antiferromagnetic material in quantized-size range; our magnetic analysis indicates that the properties of EuTe can be tuned by the change of its diameter.

Graphical abstract: Superantiferromagnetic EuTe nanoparticles: room temperature colloidal synthesis, structural characterization, and magnetic properties

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The article was received on 25 Aug 2010, accepted on 11 Oct 2010 and first published on 01 Nov 2010


Article type: Communication
DOI: 10.1039/C0NR00625D
Citation: Nanoscale, 2011,3, 184-187
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    Superantiferromagnetic EuTe nanoparticles: room temperature colloidal synthesis, structural characterization, and magnetic properties

    W. He, S. Somarajan, D. S. Koktysh and J. H. Dickerson, Nanoscale, 2011, 3, 184
    DOI: 10.1039/C0NR00625D

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