Publication Type
Journal
Journal Name
Physical Review B
Publication Date
Volume
84
Issue
20
Abstract
We investigate the electronic properties of quantum wells consisting of a t1 2g-electron system
with strong correlations using dynamical-mean- eld theory. The special focus is on the subband
structure of such quantum wells. The effective mass is found to increase with increasing the bottom
of the subband, i.e., decreasing the subband occupation number. This is due to the combination
of Coulomb repulsion, whose effect is enhanced on surface layers, and longer-range hoppings. We
discuss the implication of these results for the recent angle-resolved photoemission experiment on
SrVO3 thin lms.
