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9 papers · 2 filters
Metal-Insulator phase diagram and orbital selectivity in 3-orbital models with rotationally invariant Hund coupling
Philipp Werner, Emanuel Gull, Andrew J. Millis
A three band model containing the essential physics of transition metal oxides with partially filled t_2g shells is solved in the single-site dynamical mean field approximation, us…
Theory of Manganite Superlattice
Chungwei Lin, Andrew. J. Millis
A theoretical model is proposed for the (0,0,1) superlattice manganite system (LaMnO)(SrMnO). The model includes the electron-electron, electron-phonon, and coopera…
Theoretical Description of Pseudocubic Manganites
Chungwei Lin, Andrew. J. Millis
A comprehensive theoretical model for the bulk manganite system La(Ca,Sr)MnO is presented. The model includes local and cooperative Jahn-Teller distortions and the…
Theory of Low-Temperature Hall Effect in Stripe--Ordered Cuprates
Jie Lin, A. J. Millis
We investigate the effect of static anti-phase stripe order on the weak-field Hall effect of electrons on a two-dimensional square lattice with electron dispersion appropriate to t…
Spin freezing transition and non-Fermi-liquid self-energy in a 3-orbital model
Philipp Werner, Emanuel Gull, Matthias Troyer +1
A single-site dynamical mean field study of a three band model with the rotationally invariant interactions appropriate to the t_2g levels of a transition metal oxide reveals a qua…
Local Order and the gapped phase of the Hubbard model: a plaquette dynamical mean field investigation
Emanuel Gull, Philipp Werner, Xin Wang +2
The four-site DCA method of including intersite correlations in the dynamical mean field theory is used to investigate the metal-insulator transition in the Hubbard model. At half…