Anharmonic Interaction in Aluminum. I
- 15 June 1970
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 1 (12) , 4521-4528
- https://doi.org/10.1103/physrevb.1.4521
Abstract
Anharmonic linewidths and frequency shifts have been calculated as a function of temperature for Al, employing an effective interionic interaction derived from a model pseudopotential. Calculations have been carried out along principal symmetry directions at 80 and 300 K and comparison is made with the experimental data of Stedman and Nilsson and with the recent calculations of Högberg and Sandström. The structure of the one-phonon spectral function at 300 K for selected longitudinal phonons is examined in detail and discussed. The presence of a significant asymmetry in the one-phonon peak for the (0.8, 0, 0) longitudinal mode is pointed out.Keywords
This publication has 18 references indexed in Scilit:
- Dependence of Phonon Frequencies on the Pseudopotential Form Factor for AluminumPhysical Review B, 1969
- Crystal Dynamics of Potassium. II. The Anharmonic EffectsPhysical Review B, 1969
- Anharmonic Effects on Phonons in AluminiumPhysica Status Solidi (b), 1969
- Pseudopotential Calculation of the Thermal Expansion Coefficient of Sodium and PotassiumPhysical Review B, 1968
- Second- and Third-Order Elastic Constants of Alkali MetalsPhysical Review B, 1968
- Electron-ion pseudopotentials in the alkali metalsJournal of Physics C: Solid State Physics, 1968
- The phonon spectra of alkali metals and aluminiumIl Nuovo Cimento B (1971-1996), 1966
- Dispersion Relations for Phonons in Aluminum at 80 and 300°KPhysical Review B, 1966
- A calculation of the phonon frequencies in sodiumProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1965
- The method of neutral pseudo-atoms in the theory of metalsAdvances in Physics, 1964