Periodic Anderson model from the atomic limit and FeSi
نویسندگان
چکیده
منابع مشابه
The periodic Anderson model from the atomic limit and FeSi
The exact Green’s functions of the periodic Anderson model for U → ∞ are formally expressed within the cumulant expansion in terms of an effective cumulant. Here we resort to a calculation in which this quantity is approximated by the value it takes for the exactly soluble atomic limit of the same model. In the Kondo region a spectral density is obtained that shows near the Fermi surface a stru...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 1999
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.60.11361