The bulk-phonon lineshifts of aluminium have been evaluated along the high-symmetry directions at room temperature. Comparison with available experimental data is satisfactory. The constant-volume anharmonic contributions to the energy shift tend to cancel each other whereas the volume-dependent term determines the softening of the phonon spectrum. The interatomic potential has been modelled according to a force-constant scheme which parametrizes the most important harmonic and anharmonic interactions.

Anharmonic shifts of phonon energies in aluminium

ZOLI, Marco
1990-01-01

Abstract

The bulk-phonon lineshifts of aluminium have been evaluated along the high-symmetry directions at room temperature. Comparison with available experimental data is satisfactory. The constant-volume anharmonic contributions to the energy shift tend to cancel each other whereas the volume-dependent term determines the softening of the phonon spectrum. The interatomic potential has been modelled according to a force-constant scheme which parametrizes the most important harmonic and anharmonic interactions.
1990
262
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11581/246596
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 2
social impact