Configuration interaction approach to Fermi liquid–Wigner crystal mixed phases in semiconductor nanodumbbells

A. Ballester, J. L. Movilla, J. M. Escartín, M. Pi, J. Planelles
2012 Journal of Applied Physics  
Full configuration interaction calculations demonstrate the existence of mixed correlation phases in truly three-dimensional elongated nanocrystals subject to inhomogeneous spatial confining potentials. In such phases, the electron density behaves like a Fermi liquid in some regions, while, simultaneously, other more dilute regions display the typical quasi-classical Wigner distribution. The present results confirm and strengthen previous local spin-density functional theory predictions
more » ... er et al., Phys. Rev. B 82, 115405 (2010)]. Additionally, simulation of the in-plane and z-polarized modes of the absorption spectra reveals the different correlation regimes occurring in these systems.
doi:10.1063/1.4737774 fatcat:dzbn4l4kkbdfbivzsurfof4l6u