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@article{806291,
author = {Nebojsa, Alois and Fikarová Zrzavecká, Olga and Navrátil, Karel and Humlíček, Josef},
article_number = {5},
keywords = {spectroscopic ellipsometry; iron; CrNiAl steel; temperature dependence},
language = {eng},
issn = {1610-1642},
journal = {physica status solidi (c)},
title = {Temperature dependence of ellipsometric spectra of Fe and CrNiAl steel},
volume = {5},
year = {2008}
}
TY - JOUR
ID - 806291
AU - Nebojsa, Alois - Fikarová Zrzavecká, Olga - Navrátil, Karel - Humlíček, Josef
PY - 2008
TI - Temperature dependence of ellipsometric spectra of Fe and CrNiAl steel
JF - physica status solidi (c)
VL - 5
IS - 5
SP - 1176-1179
EP - 1176-1179
SN - 16101642
KW - spectroscopic ellipsometry
KW - iron
KW - CrNiAl steel
KW - temperature dependence
N2 - We report on the temperature dependence of optical response of pure bcc iron and CrNiAl steel. Ellipsometric spectra, covering the 1.4-3.0 eV spectral range, have been obtained during temperature cycles reaching 650 C in UHV chamber. Since the penetration depth of light is rather small and the data are sensitive to the quality of sample surfaces, we have examined polished, etched and annealed samples. We identify characteristic features of the temperature dependence, consisting in spectral shifts of interband transitions and a redistribution of spectral weight. We have also detected reproducible irreversible changes in the initial stages of annealing cycles when the samples are heated to at least 300 C. With increasing temperature, we observe a pronounced reduction of the minority-spin interband contribution.
ER -
NEBOJSA, Alois, Olga FIKAROVÁ ZRZAVECKÁ, Karel NAVRÁTIL and Josef HUMLÍČEK. Temperature dependence of ellipsometric spectra of Fe and CrNiAl steel. \textit{physica status solidi (c)}. 2008, vol.~5, No~5, p.~1176-1179. ISSN~1610-1642.
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