Switching between Mott-Hubbard and Hund Physics in Moiré Quantum Simulators.
Sign Up to like & getrecommendations! Published in 2022 at "Nano letters"
DOI: 10.1021/acs.nanolett.2c04169
Abstract: Mott-Hubbard and Hund electron correlations have been realized thus far in separate classes of materials. Here, we show that a single moiré homobilayer encompasses both kinds of physics in a controllable manner. We develop a… read more here.
Keywords: physics; hubbard hund; mott hubbard; hund ... See more keywords
Suppression of magnetism in Ba 5 AlIr 2 O 11 : Interplay of Hund's coupling, molecular orbitals, and spin-orbit interaction
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.014434
Abstract: The electronic and magnetic properties of ${\mathrm{Ba}}_{5}{\mathrm{AlIr}}_{2}{\mathrm{O}}_{11}$ containing Ir-Ir dimers are investigated using the generalized gradient approximation (GGA) and GGA + spin-orbit coupling (SOC) calculations. We found that the strong suppression of the magnetic moment… read more here.
Keywords: orbit interaction; hund; suppression magnetism; interaction ... See more keywords
Hund nodal line semimetals: The case of a twisted magnetic phase in the double-exchange model
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.99.020404
Abstract: We propose a class of topological metals, which we dub Hund nodal line semimetals, arising from the strong Coulomb interaction encoded in the Hund's coupling between itinerant electrons and localiz ... read more here.
Keywords: semimetals case; hund nodal; nodal line; line semimetals ... See more keywords