Physics – Condensed Matter – Materials Science
Scientific paper
2000-06-15
Phil. Mag. B, 75 (1997) 407-418
Physics
Condensed Matter
Materials Science
12 pages, 11 figures, LaTeX
Scientific paper
The simplest anharmonic characteristics of Ir and Rh are discussed in the framework of a previously developed simple pseudopotential model which describes the elastic moduli, phonon spectra and the lattice heat capacity in the harmonic approximation of these metals succesfully. The microscopic Gruneisen parameters, the dependences of the elastic moduli on pressure, the coefficient of thermal expansion and the equations of state at the finite temperatures have been calculated. The ab initio calculations of the energy-band structure and the equation of state for Ir at T=0 have been done to test the model for adequacy at high pressures. The values of different contributions (zero-point oscillations, quasiharmonic, etc.) in the considered thermodynamic characteristics of Ir and Rh are discussed.
Katsnelson Mikhail I.
Khromov Yu. K.
Sigalas M. M.
Trefilov A. V.
No associations
LandOfFree
Thermal expansion and the equation of state of Ir and Rh does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Thermal expansion and the equation of state of Ir and Rh, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal expansion and the equation of state of Ir and Rh will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-547169