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Structural and electronic properties of BiOF with two-dimensional layered structure under high pressure: Ab initio study       
Yazarlar
Mehmet Canpolat
Doç. Dr. Cihan KÜRKÇÜ
Kırşehir Ahi Evran Üniversitesi, Türkiye
Çağatay Yamçıçıer
Ziya Merdan
Gazi Üniversitesi, Türkiye
Özet
In this work, the crystal structure of the BiOF is studied under high hydrostatic pressure using ab initio calculations. Pressure-volume relationships and structural transitions are investigated using Siesta method. A first-order phase transition from the tetragonal matlockite PbFCl-type structure with space group P4/nmm to the orthorhombic structure with space group Cmcm is successfully observed for BiOF. This phase transition which occur around 19.6 GPa is also analyzed from the total energy and enthalpy calculations. In addition, electronic properties of BiOF are researched during the pressure. By analyzing the energy band structures, it is found that the band gaps P4/nmm and Cmcm phases for the BiOF are 2.74 and 2.47 eV, respectively.
Anahtar Kelimeler
Intermediate phase, Phase transition, Enthalpy, Electronic structure
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Solid State Communications
Dergi ISSN 0038-1098
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 02-2019
Cilt No 288
Sayfalar 33 / 37
Doi Numarası 10.1016/j.ssc.2018.11.010
Makale Linki https://linkinghub.elsevier.com/retrieve/pii/S0038109818306264