scholarly journals Periodic Anderson model with correlated conduction electrons: Variational and exact diagonalization study

2012 ◽  
Vol 85 (23) ◽  
Author(s):  
I. Hagymási ◽  
K. Itai ◽  
J. Sólyom
2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
I. Hagymási ◽  
J. Sólyom ◽  
Ö. Legeza

We study the momentum distribution of the electrons in an extended periodic Anderson model, where the interaction,Ucf, between itinerant and localized electrons is taken into account. In the symmetric half-filled model, due to the increase of the interorbital interaction, thefelectrons become more and more delocalized, while the itinerancy of conduction electrons decreases. Above a certain value ofUcfthefelectrons become again localized together with the conduction electrons. In the less than half-filled case, we observe thatUcfcauses strong correlations between thefelectrons in the mixed valence regime.


1997 ◽  
Vol 56 (11) ◽  
pp. 6559-6568 ◽  
Author(s):  
Tom Schork ◽  
Stefan Blawid

1998 ◽  
Vol 78 (4) ◽  
pp. 365-374 ◽  
Author(s):  
A. N.Tahvildar-Zadeh, M. H. Hettler, M

2000 ◽  
Vol 61 (19) ◽  
pp. 12799-12809 ◽  
Author(s):  
Th. Pruschke ◽  
R. Bulla ◽  
M. Jarrell

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