Title:
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Measurement and simulation of anisotropy in the Infrared and Raman spectra of beta-FeSi2 single crystals
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Author:
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Guizzetti, G.; Marabelli, F.; Patrini, M.; Pellegrino, Paolo; Pivac, B.; Miglio, L.; Meregalli, V.; Lange, H.; Henrion, W.; Tomm, V.
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Other authors:
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Universitat de Barcelona |
Abstract:
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In this paper we show that the orthorhombic phase of FeSi2 (stable at room temperature) displays a sizable anisotropy in the infrared spectra, with minor effects in the Raman data too. This fact is not trivial at all, since the crystal structure corresponds to a moderate distortion of the fluorite symmetry. Our analysis is carried out on small single crystals grown by flux transport, through polarization-resolved far-infrared reflectivity and Raman measurements. Their interpretation has been obtained by means of the simulated spectra with tight-binding molecular dynamics. |
Subject(s):
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-Anisotropia -Efecte Raman -Espectre infraroig -Cristalls -Anisotropy -Raman effect -Vibrational spectra -Crystals |
Rights:
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(c) The American Physical Society, 1997
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Document type:
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Article Article - Published version |
Published by:
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The American Physical Society
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