Revealing Hund's multiplets in Mott insulators under strong electric fields
Physical Review B, pp. 1611072019.
We investigate the strong-field dynamics of a paramagnetic two-band Mott insulator using real-time dynamical mean-field theory. A dielectric breakdown occurs due to many-body Landau-Zener tunnelling, with a threshold field determined by the gap. For a large range of fields, however, we predict that the tunnelling currents are small enou...More
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