TY - JOUR
T1 - Spatial inhomogeneity and strong correlation physics
T2 - A dynamical mean-field study of a model Mott-insulator-band-insulator heterostructure
AU - Okamoto, Satoshi
AU - Millis, Andrew J.
PY - 2004/12
Y1 - 2004/12
N2 - We use the dynamical mean-field method to investigate electronic properties of heterostructures in which a finite number of Mott-insulator layers are embedded in a spatially infinite band insulator. The evolution of the correlation effects with the number of Mott insulating layers and with position in the heterostructure is determined, and the optical conductivity is computed. It is shown that the heterostructures are generally metallic, with moderately renormalized bands of quasiparticles appearing at the interface between the correlated and uncorrelated regions.
AB - We use the dynamical mean-field method to investigate electronic properties of heterostructures in which a finite number of Mott-insulator layers are embedded in a spatially infinite band insulator. The evolution of the correlation effects with the number of Mott insulating layers and with position in the heterostructure is determined, and the optical conductivity is computed. It is shown that the heterostructures are generally metallic, with moderately renormalized bands of quasiparticles appearing at the interface between the correlated and uncorrelated regions.
UR - http://www.scopus.com/inward/record.url?scp=14944355615&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.70.241104
DO - 10.1103/PhysRevB.70.241104
M3 - Article
AN - SCOPUS:14944355615
SN - 1098-0121
VL - 70
SP - 1
EP - 4
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 24
M1 - 241104
ER -