Phonon dispersion and thermodynamical properties in ZrB2, NbB2, and MoB2


Deligoz E., Colakoglu K., Ciftci Y.

SOLID STATE COMMUNICATIONS, cilt.150, ss.405-410, 2010 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 150
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.ssc.2009.11.045
  • Dergi Adı: SOLID STATE COMMUNICATIONS
  • Sayfa Sayıları: ss.405-410

Özet

The structural and lattice dynamical calculations are performed on ZrB2, NbB2, and MoB2 compounds using the first-principles of total energy calculations. Generalized gradient approximations (GGA) are used to model exchange-correlation effects. Structural results of these calculations are consistent with past experimental data and other theoretical findings. Our lattice dynamical results regarding phonon dispersion curves and temperature-dependent behavior of thermodynamical properties (entropy, heat capacity, internal energy, and free energy) contribute to the existing literature on these compounds. (C) 2009 Elsevier Ltd. All rights reserved.