We demonstrate that the electron density of the light-populated image potential states in graphite reaches its maximum when the photon energy of ultrashort laser pulses is resonant with the π−π* band gap at the M point of the Brillouin zone. This unexpected behavior, as shown by the nonlinear photoelectron spectroscopy data, is assisted by the onset of a strong light-induced interaction between the π bands and the image potential states. This finding suggests the possibility of exploring new photochemical processes at the graphite surface and related compounds.

Pagliara, S., Montagnese, M., Dal Conte, S., Galimberti, G., Ferrini, G., Parmigiani, F., Insight on the interaction between image potential state and π bands in graphite, <<PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS>>, 2013; 87 (Gennaio): 045427-045432. [doi:10.1103/PhysRevB.87.045427] [http://hdl.handle.net/10807/42084]

Insight on the interaction between image potential state and π bands in graphite

Pagliara, Stefania;Montagnese, Matteo;Dal Conte, Stefano;Galimberti, Gianluca;Ferrini, Gabriele;
2013

Abstract

We demonstrate that the electron density of the light-populated image potential states in graphite reaches its maximum when the photon energy of ultrashort laser pulses is resonant with the π−π* band gap at the M point of the Brillouin zone. This unexpected behavior, as shown by the nonlinear photoelectron spectroscopy data, is assisted by the onset of a strong light-induced interaction between the π bands and the image potential states. This finding suggests the possibility of exploring new photochemical processes at the graphite surface and related compounds.
2013
Inglese
Pagliara, S., Montagnese, M., Dal Conte, S., Galimberti, G., Ferrini, G., Parmigiani, F., Insight on the interaction between image potential state and π bands in graphite, <<PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS>>, 2013; 87 (Gennaio): 045427-045432. [doi:10.1103/PhysRevB.87.045427] [http://hdl.handle.net/10807/42084]
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/10807/42084
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 11
  • ???jsp.display-item.citation.isi??? 12
social impact