43 citations · 157 across the 7 of their papers we have counts for
7 papers
Tight binding formulation of the dielectric response in semiconductor nanocrystals
F. Trani, D. Ninno, G. Iadonisi
We report on a theoretical derivation of the electronic dielectric response of semiconductor nanocrystals using a tight-binding framework. Extending to the nanoscale the Hanke and…
On the effects of the magnetic field and the isotopic substitution upon the infrared absorption of manganites
C. A. Perroni, V. Cataudella, G. De Filippis +3
Employing a variational approach that takes into account electron-phonon and magnetic interactions in perovskites with , the effects of the magnetic fie…
Spectral properties and infrared absorption in manganites
C. A. Perroni, G. De Filippis, V. Cataudella +1
Within a recently proposed variational approach it has been shown that, in perovskites with , near the metal-insulator transition, the combined effect o…
Polaron and bipolaron formation in the Hubbard-Holstein model: role of next-nearest neighbor electron hopping
G. De Filippis, V. Cataudella, G. Iadonisi +3
The influence of next-nearest neighbor electron hopping, , on the polaron and bipolaron formation in a square Hubbard-Holstein model is investigated within a variationa…
Polaron features of the one-dimensional Holstein Molecular Crystal Model
V. Cataudella, G. De Filippis, G. Iadonisi
The polaron features of the one-dimensional Holstein Molecular Crystal Model are investigated by improving a variational method introduced recently and based on a linear superposit…
Coexistence of large and small polarons in manganites
V. Cataudella, G. De Filippis, G. Iadonisi
The interplay of the electron-phonon interaction and of the double and super exchange magnetic effects is analyzed in the perovskites with . By using a…