Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
1998-11-10
Physica B 259-261, 760 (1999)
Physics
Condensed Matter
Strongly Correlated Electrons
LaTeX, 2 pages, 1 eps figure included, Physica B (in press), SCES 98
Scientific paper
10.1016/S0921-4526(98)01126-0
Using the dynamical mean-field theory, we calculate the effective electron
mass in the Hubbard model on a semi-infinite lattice. At the surface the
effective mass is strongly enhanced. Near half-filling this gives rise to a
correlation-driven one-electron surface mode.
Nolting Wolfgang
Potthoff Michael
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