X-boson cumulant approach to the periodic Anderson model
نویسندگان
چکیده
منابع مشابه
Thermodynamic potential of the Periodic Anderson Model with the X-boson method: Chain Approximation
The Periodic Anderson Model (PAM) in the U → ∞ limit has been studied in a previous work employing the cumulant expansion with the hybridization as perturbation (M. S. Figueira, M. E. Foglio and G. G. Martinez, Phys. Rev. B 50, 17933 (1994)). When the total number of electrons Nt is calculated as a function of the chemical potential μ in the “Chain Approximation” (CHA), there are three values o...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2002
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.66.045112