Calculated elastic constants and structural properties of Mo and
- 15 March 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 43 (8), 6500-6509
- https://doi.org/10.1103/physrevb.43.6500
Abstract
Using an all-electron, self-consistent, full-potential, linear muffin-tin-orbitals method within the local-density approximation of density-functional theory, we have studied the structural properties and the elastic constants of Mo and . The Mo and ground-state properties, lattice parameters, cohesive energy, and (for Mo) elastic constants are found to be in good agreement with the experimental results. Different structures in the angle-integrated photoemission spectrum of can be satisfactorily explained in terms of various features present in the calculated total density of states. Since there have been no previous theoretical or experimental determinations, our calculations provide the first available information on the elastic constants of . For both Mo and we have calculated the stress tensors for the experimental structures and have minimized their elastic energies. We have found that the lattice parameters and the ground-state total energies of Mo and obtained from both the elastic energy and the total-energy minimizations are about the same, and that the lattice parameters are close to their experimental values.
Keywords
This publication has 33 references indexed in Scilit:
- Pressure-induceds→dtransfer and the equation of state of molybdenumPhysical Review B, 1990
- Linear augmented-plane-wave calculation of the structural properties of bulk Cr, Mo, and WPhysical Review B, 1986
- Self-consistent semirelativistic energy bands ofPhysical Review B, 1985
- Elastic constants versus melting temperature in metalsScripta Metallurgica, 1984
- VIBRATIONAL FREQUENCIES VIA FROZEN PHONONSLe Journal de Physique Colloques, 1981
- Experimental and theoretical band-structure studies of refractory metal silicidesPhysical Review B, 1981
- Self-consistent pseudopotential calculation of the bulk properties of Mo and WPhysical Review B, 1979
- Linear methods in band theoryPhysical Review B, 1975
- Self-Consistent Equations Including Exchange and Correlation EffectsPhysical Review B, 1965
- Inhomogeneous Electron GasPhysical Review B, 1964