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First principles study of the structural, elastic, electronic and phonon properties of CdX2O4 (X= Al, Ga, In) spinel-type oxides     
Yazarlar
Doç. Dr. Abdullah CANDAN Doç. Dr. Abdullah CANDAN
Kırşehir Ahi Evran Üniversitesi
Gokay Ugur
TE Simos
Z Kalogiratou
T Monovasilis
Özet
We have performed ab-initio calculations of the structural, electronic, elastic and dynamical properties for the spinel compounds CdX2O4 (X=Al, Ga, In) using the plane wave pseudo-potential method within the generalized gradient approximation (GGA). The calculated lattice parameters, elastic constants for these compounds are in good agreement with the previous calculated values. The computed direct band gaps of CdAl2O4, CdGa2O4 and CdIn2O4 are 2.90 eV, 1.92 eV and 1.16 eV, respectively. The lattice vibrations were calculated by direct method. The calculated phonon dispersion curves show that all compounds are dynamically stable in the spinel structure.
Anahtar Kelimeler
Spinel oxides, band gap, elastic constants, phonon dispersion curves
Bildiri Türü Tebliğ/Bildiri
Bildiri Alt Türü Tam Metin Olarak Yayımlanan Tebliğ (Uluslararası Kongre/Sempozyum)
Bildiri Niteliği Alanında Hakemli Uluslararası Kongre/Sempozyum
Bildiri Dili İngilizce
Kongre Adı 10th International Conference of Computational Methods in Sciences and Engineering
Kongre Tarihi 04-04-2014 / 07-04-2014
Basıldığı Ülke
Basıldığı Şehir Athens, Greece