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13 papers · 1 filter
Surface effects in doping a Mott insulator
Reza Nourafkan, Frank Marsiglio
The physics of doping a Mott insulator is investigated in the presence of a solid-vacuum interface. Using the embedding approach for dynamical mean field theory we show that the ch…
Impact of spin-orbit coupling on the Holstein polaron
Zhou Li, L. Covaci, M. Berciu +2
We utilize an exact variational numerical procedure to calculate the ground state properties of a polaron in the presence of a Rashba-like spin orbit interaction. Our results corro…
Perturbation theory of the mass enhancement for a polaron coupled to acoustic phonons
Zhou Li, Carl J. Chandler, F. Marsiglio
We use both a perturbative Green's function analysis and standard perturbative quantum mechanics to calculate the decrease in energy and the effective mass for an electron interact…
Orbital-selective Mott transition and heavy fermion behavior in a bilayer Hubbard model for 3He
K. S. D. Beach, F. F. Assaad
Inspired by recent experiments on 3He films between one and two atoms thick, we consider a bilayer Hubbard model on a triangular lattice. Our results are obtained in the framework…
Hyperfine Fields in an Ag/Fe Multilayer Film Investigated with 8Li beta-Detected Nuclear Magnetic Resonance
T. A. Keeler, Z. Salman, K. H. Chow +11
Low energy -detected nuclear magnetic resonance (-NMR) was used to investigate the spatial dependence of the hyperfine magnetic fields induced by Fe in the nonmagnetic Ag of…
Coherence and metamagnetism in the two-dimensional Kondo lattice model
K. S. D. Beach, F. F. Assaad
We report the results of dynamical mean field calculations for the metallic Kondo lattice model subject to an applied magnetic field. High-quality spectral functions reveal that th…