Copper defects inside AlN:Cu nanorods - XANES and LAPW study

被引：13

作者：

Guda, A. A. ^{[1
]}

Lau, S. P.

Soldatov, M. A. ^{[1
]}

Smolentsev, N. Yu ^{[1
]}

Mazalova, V. L. ^{[1
]}

Ji, X. H.

Soldatov, A. V. ^{[1
]}

机构：

[1] So Fed Univ, Rostov Na Donu 344090, Russia

来源：

14TH INTERNATIONAL CONFERENCE ON X-RAY ABSORPTION FINE STRUCTURE (XAFS14), PROCEEDINGS | 2009年 / 190卷

关键词：

FERROMAGNETISM;

D O I：

10.1088/1742-6596/190/1/012136

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

AlN ferromagnetic nanorods with 5 at.% of copper were studied by using x-ray absorption spectroscopy (XAFS) above the Cu K-and L3-edges. Theoretical simulations of XAFS spectra clearly identify a formation of small copper clusters inside AlN lattice. Average size of clusters was estimated to be 50-70 atoms from the analysis of both XANES (X-ray Absorption Near Edge Spectroscopy) and EXAFS (Extended X-ray Absorption Fine Structure) regions of spectra. Calculations of magnetic moments for different types of point copper defects in AlN lattice were made.

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页数：4

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