Plasmon model for image-potential-induced surface states with an application to positrons at metal surfaces

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

Organisaatiot

  • Nordita
  • CNRS

Kuvaus

A variational method is presented to calculate dynamic corrections to the image potential of a charged particle at a metal-vacuum interface and hence to calculate its binding energy. The response of the metal is treated within the plasmon approximation. As an application, a model for positron surface states on simple metals is studied. It predicts the existence of bound positron surface states in Al, Ga, Zn, Cd, and possibly other high-density simple metals. Further, the resulting localized positron state would have a lifetime 2 to 3 times longer than in the bulk.

Yksityiskohdat

AlkuperäiskieliEnglanti
Sivut2568-2576
Sivumäärä9
JulkaisuPhysical Review B
Vuosikerta18
Numero6
TilaJulkaistu - 15 syyskuuta 1978
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

ID: 6591758