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cond-mat1998
Destruction of Strong Critical Spin Fluctuations by Doping in the 2D Hubbard Model
Bumsoo Kyung
We present the doping dependence of the spectral functions, density of states and low frequency behavior of the self-energy for the 2D Hubbard model on the basis of our recently de…
cond-mat1998
Band Kondo Effect in the Doped 2D Hubbard Model
Bumsoo Kyung
We present strong numerical evidence for the band Kondo effect in the doped 2D Hubbard model by showing the systematic change of the density of states, imaginary part of the self-e…
cond-mat1998
Formation of a Heavy-Fermion State in the 2D Periodic Anderson Model
Bumsoo Kyung
We study the formation of a heavy-fermion state in the 2D periodic Anerson model. For U=2, the density of states, imaginary part of the self-energy and effective magnetic moment al…