Calculation of the temperature dependence of the susceptibility of heavy-fermion compounds from the periodic Anderson model

1993 ◽  
Vol 186-188 ◽  
pp. 869-872 ◽  
Author(s):  
T.M. Hong ◽  
G.A. Gehring ◽  
R. Woiciechowski
Keyword(s):  
Temperature Dependence ◽  
Anderson Model ◽  
Heavy Fermion ◽  
Periodic Anderson Model

Pseudogap Formation in CeNiSn

1998 ◽  
Vol 12 (05) ◽  
pp. 197-204
Author(s):  
Feng Xiao-Bing
Keyword(s):  
Green’S Function ◽  
Temperature Dependence ◽  
Excitation Spectrum ◽  
Green's Function ◽  
Single Particle ◽  
Anderson Model ◽  
Periodic Anderson Model ◽  
Decoupling Method ◽  
Single Particle Excitation

Using Green's function decoupling method the single particle excitation spectrum of the periodic Anderson model is studied. With increasing hybridization potential in the Kondo regime there appear pseudogaps in the excitation spectrum of the two kinds of carriers. The temperature dependence of the pseudogaps is qualitatively in accordance with tunneling experiments on CeNiSn.

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