1106.4886 (I. Hagymasi et al.)

Periodic Anderson model with d-f interaction    [PDF]

I. Hagymasi, K. Itai, J. Solyom

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.

View original: http://arxiv.org/abs/1106.4886