High pressure structural phase transitions and intermediate phases of magnesium fluoride
Yazarlar (3)
Prof. Dr. Hülya ÖZTÜRK Kırşehir Ahi Evran Üniversitesi, Türkiye
Cemile Kürkçü
Kırşehir Ahi Evran Üniversitesi, Türkiye
Prof. Dr. Cihan KÜRKÇÜ Kırşehir Ahi Evran Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Journal of Alloys and Compounds
Dergi ISSN 0925-8388 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SSCI
Makale Dili İngilizce Basım Tarihi 06-2014
Kabul Tarihi 12-04-2026 Yayınlanma Tarihi
Cilt / Sayı / Sayfa 597 / 1 / 155–160 DOI 10.1016/j.jallcom.2014.01.221
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S0925838814002862
Özet
We investigate the structural behavior of magnesium fluoride (MgF2) under the hydrostatic pressure using constant pressure ab initio technique up to 130 GPa. Through constant pressure simulations, two high-pressure phases of MgF2 are estimated. MgF2 undergoes a phase transformation from the rutile-type structure to the CaCl2-type structure with space group Pnnm at 10–20 GPa. Another phase transformation from the CaCl2-type structure to the α-PbCl2-type structure with space group Pnma occurs at 80–90 GPa. The later transformation is based on three intermediate phases with space groups P21/m, P21 and P212121. These phase transitions are also analyzed from the total energy and enthalpy calculations. These phase changes should occur around 9 and 35 GPa from enthalpy calculations, respectively.
Anahtar Kelimeler
Ab initio molecular dynamics | Intermediate phase | Structural phase transformation
Science Direct
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Google Scholar 19
Scopus 1
High pressure structural phase transitions and intermediate phases of magnesium fluoride

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