Published August 1, 2007
| Version v1
Journal article
Evidence of longitudinal resonance and optical subsurface phonons in Al(001)
- 1. Physics Department, Goeteborgs University, Fysikgraend 3, S-412 96 Goeteborg (Sweden)
- 2. Dipartimento di Scienza dei Materiali, Universita di Milano-Bicocca, Via R. Cozzi 53, 20125 Milan (Italy)
- 3. Max-Planck-Institut fuer Dynamik und Selbstorganization, Bunsenstrasse 10, 37072 Goettingen (Germany)
Description
A calculation of the surface phonon dispersion curves of Al(001) based on density functional perturbation theory confirms the intrinsic nature of the controversial longitudinal surface phonon resonance, which has been reported to occur in most metal surfaces. The results support previous density-response pseudopotential and semi-empirical Born-von-Karman calculations by Franchini, Bortolani, et al, proving the extended nature of the surface perturbation. The latter implies the existence of a Lucas pair of optical surface modes localized in the second layer
Additional details
Identifiers
- DOI
- 10.1088/0953-8984/19/30/305011;
- PII
- S0953-8984(07)43304-5;
Publishing Information
- Journal Title
- Journal of Physics. Condensed Matter
- Journal Volume
- 19
- Journal Issue
- 30
- Journal Page Range
- p. 305011
- ISSN
- 0953-8984
- CODEN
- JCOMEL
Conference
- Title
- 12. workshop on surface dynamics
- Dates
- 22-25 Jun 2006
- Place
- Modena (Italy)
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39043928
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ALUMINIUM; DENSITY; DENSITY FUNCTIONAL METHOD; DIAGRAMS; LAYERS; PERTURBATION THEORY; PHONONS; POTENTIALS; RESONANCE; SURFACES
- Descriptors DEC
- CALCULATION METHODS; ELEMENTS; INFORMATION; METALS; PHYSICAL PROPERTIES; QUASI PARTICLES; VARIATIONAL METHODS