X-ray Absorption Near Edge Structure of FePt nanoclusters

Details X-ray Absorption Near Edge Structure of FePt nanoclusters X-ray Absorption Near Edge Structure of FePt nanoclusters

2004-02-24

arxiv.org/abs/cond-mat/0402571v1

Applied Surface Science, Volume 241, Issues 1-2, 28 February 2005, Pages 199-204

Physics

Condensed Matter

Materials Science

TeX version 3.14159, LaTex2e, 6 pages with 6 figures

Scientific paper

10.1016/j.apsusc.2004.09.036

X-ray Absorption Near Edge Structure [XANES] of FePt nanoclusters has been studied using a full multiple scattering, self-consistent field [SCF], real-space Green`s function approach realized via the powerful ab initio FEFF8 code. One purpose of our study is to determine the sensitivity of Pt L3 edge with respect to the size and shape of the FePt nanoclusters. We also give the results of the calculations with respect to the Fe L3 edge. Calculations are made with and without core-hole for two main reasons, to check and cross-check the FEFF code and also since in some cases it is known such as Pt clusters that better results are obtained without the core-hole. This is mainly because the screening electron will occupy empty d or f states and correspondingly reduce the white line intensity.

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