First principles study of elastic and mechanical properties of TlBr and TlCl compounds

Guler M., Uğur Ş., Uğur G., Guler E.

JOURNAL OF MOLECULAR STRUCTURE, cilt.1200, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 1200
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1016/j.molstruc.2019.127150
  • Dergi Adı: JOURNAL OF MOLECULAR STRUCTURE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chimica, Compendex, INSPEC
  • Anahtar Kelimeler: TlBr, TlCl, DFT, GGA, Elastic, Mechanical, PHASE-TRANSITION, PRESSURE, BEHAVIOR
  • Gazi Üniversitesi Adresli: Evet

Özet

We performed first principles calculations to determine the typical cubic elastic constants (C-11, C-12 and C-44), bulk modulus (B), shear modulus (G) and Young's modulus (E) of TlBr and TlCl compounds. We employed two different GGA functionals, the Perdew-Wang 1991 (PW91) and the Perdew-Burke-Ernzerhof (PBE) for the exchange and correlation energy to present calculations. Our results for the elastic constants, bulk modulus, shear modulus and Young's modulus of TlBr and TlCl compounds were compared both with former experiments and theoretical data. Present results are found to be satisfactory and better than some earlier literature data. (C) 2019 Elsevier B.V. All rights reserved.