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cond-mat1996★ 6 cited
Dielectric properties of multiband electron systems: II - Collective modes
P. Zupanovic, A. Bjelis, S. Barisic
Starting from the tight-binding dielectric matrix in the random phase approximation we examine the collective modes and electron-hole excitations in a two-band electronic system. F…
cond-mat1996★ 12 cited
Dielectric properties of multiband electron systems: I - Tight-binding formulation
P. Zupanovic, A. Bjelis, S. Barisic
The screened electron-electron interaction in a multi-band electron system is calculated within the random phase approximation and in the tight-binding representation. The obtained…