Structural Phase Transformation, Intermediate States and Electronic Properties of PbTe Under High Pressure
   
Yazarlar (4)
Prof. Dr. Hülya ÖZTÜRK Kırşehir Ahi Evran Üniversitesi, Türkiye
Gözde Gül Arslan
Kırşehir Ahi Evran Üniversitesi, Türkiye
Prof. Dr. Cihan KÜRKÇÜ Kırşehir Ahi Evran Üniversitesi, Türkiye
Çağatay Yamçıçıer
Gazi Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Journal of Electronic Materials
Dergi ISSN 0361-5235 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI
Makale Dili Türkçe Basım Tarihi 01-2020
Cilt / Sayı / Sayfa 49 / 5 / 3089–3095 DOI 10.1007/s11664-020-08023-y
Makale Linki http://dx.doi.org/10.1007/s11664-020-08023-y
Özet
In this work, density functional theory calculations in the framework of local density approximation (LDA) are performed using the Siesta software package in order to theoretically predict the phase transition mechanism and electronic properties of lead telluride (PbTe) under high hydrostatic pressure. PbTe undergoes a structural phase transformation from the cubic NaCl-type structure (B1) belongs to Fm 3 ¯ m space group to another cubic CsCl-type structure (B2) belongs to Pm 3 ¯ m space group with the influence of external pressure through the simulations. According to simulation results, we suggest a phase transition mechanism having four intermediate states with space groups of P1¯,C2/m,R3¯mandCmmm.
Anahtar Kelimeler
electronic properties | high pressure | intermediate state | Lead telluride | phase transformation