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Nex XTO paper Eirini Sarigiannidou

Published on March 17, 2017
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Communique January 1, 2015

The paper "Al4SiC4 wurtzite crystal: Structural, optoelectronic, elastic, and piezoelectric properties" has been published in APL Materials

You will find here the paper by Eirini Sarigiannidou. This is the abstract:
"New experimental results supported by theoretical analyses are proposed for aluminum silicon carbide (Al4SiC4). A state of the art implementation of the density   functional theory is used to analyze the experimental crystal structure, the Born  charges, the elastic properties, and the piezoelectric properties. The Born charge tensor is correlated to the local bonding environment for each atom. The electronic band  structure is computed including self-consistent many-body corrections. Al4SiC4 material properties are compared to other wide band gap wurtzite materials. From a comparison between an ellipsometry study of the optical properties and theoretical results, we conclude that the Al4SiC4 material has indirect and direct band gap energies of about 2.5 eV and 3.2 eV, respectively."



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Date of update March 17, 2017

Univ. Grenoble Alpes