TY - JOUR
T1 - No indications of metal-insulator transition for systems of interacting electrons in two dimensions
AU - Berkovits, Richard
AU - Kantelhardt, Jan W.
AU - Avishai, Yshai
AU - Havlin, Shlomo
AU - Bunde, Armin
PY - 2001/2/1
Y1 - 2001/2/1
N2 - The influence of Coulomb interaction on transport properties of spinless electrons in small disordered two-dimensional systems is studied within a tight-binding model. Spatial correlations, inverse participation ratio, and multifractal spectrum of the zero-temperature local tunneling amplitude as well as the dc Kubo conductance are traced as function of the interaction strength U. When U is increased, all of the above quantities are shifted rather smoothly towards localized behavior, indicating the absence of an interaction-driven insulator-metal transition.
AB - The influence of Coulomb interaction on transport properties of spinless electrons in small disordered two-dimensional systems is studied within a tight-binding model. Spatial correlations, inverse participation ratio, and multifractal spectrum of the zero-temperature local tunneling amplitude as well as the dc Kubo conductance are traced as function of the interaction strength U. When U is increased, all of the above quantities are shifted rather smoothly towards localized behavior, indicating the absence of an interaction-driven insulator-metal transition.
UR - http://www.scopus.com/inward/record.url?scp=4244189661&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.63.085102
DO - 10.1103/PhysRevB.63.085102
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AN - SCOPUS:4244189661
SN - 1098-0121
VL - 63
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 8
ER -