Soft X-ray absorption spectroscopy studies of single crystalline Fe-Ni-O alloy thin films

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Title:	Soft X-ray absorption spectroscopy studies of single crystalline Fe-Ni-O alloy thin films
Authors:	Chen, C. L.;Chern, G.;Pan, W. L.;鄭伯昆;Tseng, P. K.;張經霖;Chang, C. L.
Contributors:	淡江大學物理學系
Keywords:	Transition metal oxide;X-ray absorption;Spinel;Rocksalt
Date:	2005-06-01
Issue Date:	2009-12-31 10:27:05 (UTC+8)
Publisher:	Elsevier
Abstract:	Soft X-ray absorption spectroscopy (XAS) studies at the transition metal L2,3 edges are carried out on a series of Fe1−xNixOy (0 ≤ x ≤ 1) thin films. The XAS measurements are sensitive to the electronic states and the structural symmetry of the sites of the absorbing atoms. This study is a continuation of the previous results and further identifies the cation distribution in Fe1−xNixOy system as x varies from 0 to 1. Systematic spectral evolutions with Ni concentration are observed in the whole series. Our results indicate that the crystal structure of the films resembles that of the spinel Fe3O4 for x ≤ 0.5. Rocksalt NiO structure is observed for x ≤ 0.8. An intermediate state may exist for x-values between 0.5 and 0.8.
Relation:	Journal of Electron Spectroscopy and Related Phenomena 144-147, pp.921-923
DOI:	10.1016/j.elspec.2005.01.104
Appears in Collections:	[Graduate Institute & Department of Physics] Journal Article

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