Effective mass at the surface of a Fermi liquid
نویسندگان
چکیده
منابع مشابه
Effective mass at the surface of a Fermi liquid
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. ————————————————————————————————————————————————— Important characteristics of interacting electrons on a lattice can be studie...
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High Density Effective Theory Confronts the Fermi Liquid
The high density effective theory recently introduced by Hong and Hsu to describe ultradense relativistic fermionic matter is used to calculate the tree-level forward scattering amplitude between two particles at the Fermi surface. While the direct term correctly reproduces that of the underlying gauge theory, the exchange term has the wrong sign. The physical consequences are discussed in the ...
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ژورنال
عنوان ژورنال: Physica B: Condensed Matter
سال: 1999
ISSN: 0921-4526
DOI: 10.1016/s0921-4526(98)01126-0