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Structural, elastic, electronic, magnetic and vibrational properties of CuCoMnGa under pressure      
Yazarlar
Doç. Dr. Ahmet İYİGÖR Doç. Dr. Ahmet İYİGÖR
Kırşehir Ahi Evran Üniversitesi, Türkiye
Şule Uğur
Gazi Üniversitesi, Türkiye
Özet
First principles calculations for the structural, electronic, elastic and phonon properties of the cubic quaternary heusler alloy CuCoMnGa on pressure have been reported by density functional theory (DFT) within generalized gradient approximation (GGA). The calculated values of the elastic constants were used for estimations of the Debye temperatures, the bulk modulus, the shear modulus, the young modulus E, the poisson's ratio sigma and the B/G ratio. The elastic constants satisfy all of the mechanical stability criteria. The electronic structures of the ferromagnetic configuration for CuCoMnGa have a metallic character. The estimated magnetic moment per formula unit is 3.76 mu(B). The phonon dispersion is studied using the supercell approach, and the stable nature at 0.2 GPa pressure is observed.
Anahtar Kelimeler
electronic band structure | magnetic properties | lattice vibration
Bildiri Türü Tebliğ/Bildiri
Bildiri Alt Türü Tam Metin Olarak Yayımlanan Tebliğ (Uluslararası Kongre/Sempozyum)
Bildiri Niteliği Web of Science Kapsamındaki Kongre/Sempozyum
Bildiri Dili İngilizce
Kongre Adı INTERNATIONAL CONFERENCE OF COMPUTATIONAL METHODS IN SCIENCES AND ENGINEERING 2014 (ICCMSE 2014)
Kongre Tarihi 04-04-2014 / 07-04-2014
Basıldığı Ülke Yunanistan
Basıldığı Şehir Athens