Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
1999-04-30
Phys. Rev. Lett. 83, 2085 (1999)
Physics
Condensed Matter
Strongly Correlated Electrons
RevTEX, 4 pages, 4 figures, to be published in PRL
Scientific paper
10.1103/PhysRevLett.83.2085
In a high-resolution photoemission study of a Mo(110) surface state various contributions to the measured width and energy of the quasiparticle peak are investigated. Electron-phonon coupling, electron-electron interactions and scattering from defects are all identified mechanisms responsible for the finite lifetime of a valence photo-hole. The electron-phonon induced mass enhancement and rapid change of the photo-hole lifetime near the Fermi level are observed for the first time.
Fedorov Alexi V.
Hulbert S. L.
Johnson Paul D.
Valla Tomas
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