We compare the results of ab initio calculations with measured reflection anisotropy spectra and show that strongly bound surface-state excitons occur on the clean diamond (100) surface. These excitons are found to have a binding energy close to 1 eV, the strongest ever observed at a semiconductor surface. Important electron-hole interaction effects on the line shape of the optical transitions above the surface-state gap are also found.

Palummo, M., Pulci, O., Sole, R., Marini, A., Schwitters, M., Haines, S., et al. (2005). Reflectance anisotropy spectra of the diamond (100)-(2x1) surface: Evidence of strongly bound surface state excitons. PHYSICAL REVIEW LETTERS, 94(8), 1-4 [10.1103/PhysRevLett.94.087404].

Reflectance anisotropy spectra of the diamond (100)-(2x1) surface: Evidence of strongly bound surface state excitons

PALUMMO, MAURIZIA;PULCI, OLIVIA;
2005-01-01

Abstract

We compare the results of ab initio calculations with measured reflection anisotropy spectra and show that strongly bound surface-state excitons occur on the clean diamond (100) surface. These excitons are found to have a binding energy close to 1 eV, the strongest ever observed at a semiconductor surface. Important electron-hole interaction effects on the line shape of the optical transitions above the surface-state gap are also found.
2005
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/03 - FISICA DELLA MATERIA
English
Con Impact Factor ISI
Anisotropy; Diamonds; Energy gap; Kinetic energy; Optoelectronic devices; Reflection; Electron-hole interactions; Optical transitions; Reflectance anisotropy spectra; Surface state excitons; Excitons
Palummo, M., Pulci, O., Sole, R., Marini, A., Schwitters, M., Haines, S., et al. (2005). Reflectance anisotropy spectra of the diamond (100)-(2x1) surface: Evidence of strongly bound surface state excitons. PHYSICAL REVIEW LETTERS, 94(8), 1-4 [10.1103/PhysRevLett.94.087404].
Palummo, M; Pulci, O; Sole, R; Marini, A; Schwitters, M; Haines, S; Williams, K; Martin, D; Weightman, P; Butler, J
Articolo su rivista
File in questo prodotto:
Non ci sono file associati a questo prodotto.

Questo articolo è pubblicato sotto una Licenza Licenza Creative Commons Creative Commons

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/37940
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? 31
social impact