Magnetic properties of lanthanide chalcogenide semiconducting nanoparticles

被引：70

作者：

Regulacio, Michelle D. ^{[1
]}

Bussmann, Konrad ^{[1
]}

Lewis, Brad ^{[1
]}

Stoll, Sarah L. ^{[1
]}

机构：

[1] Georgetown Univ, Dept Chem, Washington, DC 20057 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2006年 / 128卷 / 34期

关键词：

D O I：

10.1021/ja0620080

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

To understand the importance of the band gap to the magnetic ordering in magnetic semiconductors, we have studied the effect of particle size on the ferromagnetic Curie temperature in semiconducting EuS. We have synthesized capped similar to 20 nm EuS nanoparticles using a single-source precursor, [Eu((S2CNBu2)-Bu-i)(3)Phen] decomposed in trioctylphosphine. The nanoparticles have been characterized by X-ray powder diffraction, TEM, and magnetic susceptibility measurements as a function of temperature and field. The Curie temperature, based on Arrott plots, is depressed by 1-2 K from the bulk value.

引用

页码：11173 / 11179

页数：7

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