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First-principles study on structural, electronic, and elastic properties of SrFCl     
Yazarlar
Yılaydın Güzel
 Hülya ÖZTÜRK Hülya ÖZTÜRK
Kırşehir Ahi Evran Üniversitesi, Türkiye
 Cihan KÜRKÇÜ Cihan KÜRKÇÜ
Kırşehir Ahi Evran Üniversitesi, Türkiye
Çağatay Yamçıçıer
Osmaniye Korkut Ata Üniversitesi, Türkiye
Özet
Structural, electronic, and elastic properties of SrFCl, one of the alkaline-earth fluorohalides, under high pressure were investigated using the Siesta Package Program within the framework of density functional theory. SrFCl crystallizes in a tetragonal matlockite type structure belonging to the space group P-4/nmm at ambient conditions. The phase transformation from a tetragonal matlockite type structure to an orthorhombic type structure belonging to the space group Pmmn occurred in the presence of gradually increasing simulation pressure. The values of lattice parameters, shear modulus, Young's modulus, and bulk modulus, for the obtained structures of SrFCl were investigated. The transition pressure value was calculated by total energy and enthalpy calculations. The electronic properties of SrFCl were also calculated. Band gaps of 6.52 eV for the P-4/nmm phase and 3.55 eV for the Pmmn phase were obtained. Thus, it was concluded that the P-4/nmm and Pmmn phases of SrFCl have an insulator and a semiconductor character, respectively. In addition to these studies, the mechanical stability of SrFCl was investigated by calculating elastic constants. As a result of this calculation, both phases of SrFCl were mechanically stable.
Anahtar Kelimeler
Ab-initio calculation | Electronic and elastic properties | Enthalpy | Phase transition
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı INDIAN JOURNAL OF PHYSICS
Dergi ISSN 0973-1458
Dergi Tarandığı Indeksler SCI-Exp, SCOPUS, Curation, Current Contents Physical Chemical & Earth Sciences, Essential Science Indicators, Reference Master, Sophia
Dergi Grubu Q2
Makale Dili Türkçe
Basım Tarihi 08-2023
Cilt No 97
Sayı 9
Sayfalar 2685 / 2692
Doi Numarası 10.1007/s12648-023-02614-1
Makale Linki http://dx.doi.org/10.1007/s12648-023-02614-1