Periodic Anderson Model with d-f Interaction |
| I. Hagymásia,b, K. Itaia and J. Sólyoma
aResearch Institute for Solid State Physics and Optics of the Hungarian Academy of Sciences, P.O. Box 49, Budapest, H-1525, Hungary bInstitute of Physics, Eötvös University, Pázmány Péter sétány 1/A, H-1117, Budapest, Hungary |
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| 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. |
| DOI: 10.12693/APhysPolA.121.1070 PACS numbers: 71.10.Fd, 71.27.+a, 75.30.Mb |