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 (Q3)
Dergi ISSN 0361-5235 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 02-2020
Cilt / Sayı / Sayfa 49 / 5 / 3089–3095 DOI 10.1007/s11664-020-08023-y
Makale Linki http://link.springer.com/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 Fm3m space group to another cubic CsCl-type structure (B2) belongs to Pm3m 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 P 1; C2=m; R3m and Cmmm.
Anahtar Kelimeler
electronic properties | high pressure | intermediate state | Lead telluride | phase transformation