Journal article
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$\mathbf{J}$ freezing and Hund’s rules in spin-orbit-coupled multiorbital Hubbard models
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Kim, Aaram J.
Institut für Theoretische Physik, Goethe-Universität Frankfurt, Frankfurt am Main, Germany
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Jeschke, Harald O.
Institut für Theoretische Physik, Goethe-Universität Frankfurt, Frankfurt am Main, Germany
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Werner, Philipp
Department of Physics, University of Fribourg, Switzerland
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Valentí, Roser
Institut für Theoretische Physik, Goethe-Universität Frankfurt, Frankfurt am Main, Germany
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Published in:
- Physical Review Letters. - 2017, vol. 118, no. 8, p. 086401
English
We investigate the phase diagram of the spin-orbit-coupled three orbital Hubbard model at arbitrary filling by means of dynamical mean-field theory combined with the continuous-time quantum Monte Carlo method. We find that the spin-freezing crossover occurring in the metallic phase of the nonrelativistic multiorbital Hubbard model can be generalized to a J-freezing crossover, with J=L+S, in the spin-orbit- coupled case. In the J-frozen regime the correlated electrons exhibit a nontrivial flavor selectivity and energy dependence. Furthermore, in the regions near n=2 and n=4 the metallic states are qualitatively different from each other, which reflects the atomic Hund’s third rule. Finally, we explore the appearance of magnetic order from exciton condensation at n=4 and discuss the relevance of our results for real materials.
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Faculty
- Faculté des sciences et de médecine
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Department
- Département de Physique
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Language
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Classification
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Physics
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License
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License undefined
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Identifiers
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Persistent URL
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https://folia.unifr.ch/unifr/documents/305613
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