Structural, electronic, elastic, thermodynamic and phonon properties of LaX (X = Cd, Hg and Zn) compounds in the B2 phase
      
Yazarlar (2)
Prof. Dr. Osman ÖRNEK Kırşehir Ahi Evran Üniversitesi, Türkiye
Nihat Arlkan
Kırşehir Ahi Evran Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı International Journal of Modern Physics B (Q4)
Dergi ISSN 0217-9792 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 09-2016
Cilt / Sayı / Sayfa 30 / 24 / 1650169–0 DOI 10.1142/S0217979216501691
Makale Linki http://www.worldscientific.com/doi/abs/10.1142/S0217979216501691
Özet
The ab initio computations have been performed to examine the structural, elastic, electronic and phonon properties of cubic LaX (X = Cd, Hg and Zn) compounds in the B2 phase. The optimized lattice constants, bulk modulus, and its pressure derivative and elastic constants are evaluated and compared with available data. Electronic band structures and total and partial densities of states (DOS) have been derived for LaX (X = Cd, Hg and Zn) compounds. The electronic band structures show metallic character; the conductivity is mostly governed by La-5d states for three compounds. Phonon-dispersion curves have been obtained using the first-principle linear-response approach of the density-functional perturbation theory. The specific heat capacity at a constant volume CV of LaX (X = Cd, Hg and Zn) compounds are calculated and discussed.
Anahtar Kelimeler
ab initio calculations | density of states | ductility | Elastic properties | phonon