A. Shailos et al., Signatures of the discrete level spectrum in temperature-dependent transport through open quantum-dot arrays - art. no. 193302, PHYS REV B, 6419(19), 2001, pp. 3302
Temperature-dependent studies of the resistance of open quantum-dot arrays
reveal a regime of intermediate temperature (similar to 1-5 K), over which
the resistance increases exponentially with decreasing temperature. In this
Brief Report, we explore the origins of this unexpected localization by st
udying its correlation to the temperature-dependent variation of the magnet
oconductance. Based on these studies, we suggest that the exponential regim
e corresponds to that over which we transition from strongly broadened to e
nergetically resolved levels in the dots. In order to provide further suppo
rt for this interpretation, we perform numerical studies of temperature-dep
endent transport through the quantum dots, and discuss the role that many-b
ody effects may play in giving rise to the behavior found in experiment.