Periodic Anderson model with d-f interaction

@article{Hagymasi2011PeriodicAM,
  title={Periodic Anderson model with d-f interaction},
  author={Imre Hagym'asi and K. Itai and Jenő S{\'o}lyom},
  journal={arXiv: Strongly Correlated Electrons},
  year={2011}
}
We investigate an extended version of the periodic Anderson model where an interaction is switched on between the doubly occupied d- and f-sites. We perform variational calculations using the Gutzwiller trial wave function. We calculate the f-level occupancy as a function of the f-level energy with different interaction strengths. It is shown that the region of valence transition is sharpened due to the new interaction. 
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