Disorder-induced Kondo behavior in nanostructured CeAl2

被引：3

作者：

Han, S. -W.

Booth, C. H.

Bauer, E. D.

Huang, P. H.

Chen, Y. Y.

Lawrence, J. M.

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA

[2] Los Alamos Natl Lab, Div Sci Mat, Los Alamos, NM 87545 USA

[3] Acad Sinica, Inst Phys, Taipei, Taiwan

[4] Univ Calif Irvine, Dept Phys, Irvine, CA 92697 USA

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷

关键词：

Kondo effect; nanoparticle; disorder; XAFS; local structure; CeAl2;

D O I：

10.1016/j.jmmm.2003.11.208

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The local structural properties of nanoparticle CeAl2 were studied by X-ray absorption. ne structure measurements at the Ce L-3-edge. These studies show that the nanocrystalline material is severely disordered compared to its bulk counterpart and that the bond length of Ce - Al in the nanoparticle is about 0.4 angstrom shorter than that in the bulk. These observations strongly suggest that in addition to size and surface effects, structural disorder plays a role in determining the Kondo behavior in this nanocrystal. (C) 2004 Published by Elsevier B. V.

引用

页码：E101 / E102

页数：2

共 6 条

[1] Real-space multiple-scattering calculation and interpretation of x-ray-absorption near-edge structure [J].