Exotic magnetic order in the orbital-selective Mott regime of multiorbital systems

Abstract

The orbital-selective Mott phase (OSMP) of multiorbital Hubbard models has been extensively analyzed before using static and dynamical mean-field approximations. In parallel, the properties of Block states (antiferromagnetically coupled ferromagnetic spin clusters) in Fe-based superconductors have also been much discussed. The present effort uses numerically exact techniques in one-dimensional systems to report the observation of Block states within the OSMP regime, connecting two seemingly independent areas of research, and providing analogies with the physics of Double-Exchange models.

4 pages, 4 figures + supplementary material. Accepted in Phys. Rev. Lett

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• Novel Magnetic Block States in Low-Dimensional Iron-Based Superconductors
• Fingerprints of an Exotic Orbital-Selective Mott Phase in the Block Magnetic State of BaFe${}_2$Se${}_3$ Ladders
• Tuning a Strain-Induced Orbital Selective Mott Transition in Epitaxial VO${}_2$
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• Interaction-induced topological phase transition and Majorana edge states in low-dimensional orbital-selective Mott insulators
• Quantum phase transition between orbital-selective Mott states in Hund's metals
• Density matrix renormalization group study of a three-orbital Hubbard model with spin-orbit coupling in one dimension
• Magnetic states of quasi-one-dimensional iron chalcogenide Ba${}_2$FeS${}_3$
• Topological Gapless Phases in Non-Symmorphic Antiferromagnets
• Realization of the orbital-selective Mott state at the molecular level in Ba${}_3$LaRu${}_2$O${}_9$
• Block orbital-selective Mott insulators: a spin excitation analysis
• Magnetic states of the five-orbital Hubbard model for one-dimensional iron-based superconductors
• Orbital-selective Mott phases of a one-dimensional three-orbital Hubbard model studied using computational techniques
• Robust block magnetism in the spin ladder compound BaFe${}_2$Se${}_3$ under hydrostatic pressure
• Prediction of exotic magnetic states in the alkali metal quasi-one-dimensional iron selenide compound Na${}_2$FeSe${}_2$
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• Prediction of orbital selective Mott phases and block magnetic states in the quasi-one-dimensional iron chain Ce${}_2$O${}_2$FeSe${}_2$ under hole and electron doping
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• Magnetic-order-driven metal-insulator transitions in the quasi-one-dimensional spin-ladder compounds BaFe${}_2$S${}_3$ and BaFe${}_2$Se${}_3$
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• Intertwined charge, spin, and pairing orders in doped iron ladders
• Hund bands in spectra of multiorbital systems
• Electronic structure, magnetic properties and pairing tendencies of the copper-based honeycomb lattice Na${}_2$Cu${}_2$TeO${}_6$
• Novel Block Excitonic Condensate at $n=3.5$ in a Spin-Orbit Coupled $t_{2g}$ Multiorbital Hubbard Model
• Kanamori-Moiré-Hubbard model for transition metal dichalcogenide homobilayers
• Distinct Nature of Orbital Selective Mott Phases Dominated by the Low-energy Local Spin Fluctuations
• Spin dynamics in NaFeAs and NaFe${}_{0.53}$Cu${}_{0.47}$As probed by resonant inelastic X-ray scattering
• Unconventional superconductivity induced by suppressing an iron-selenium based Mott insulator CsFe4-xSe4
• Strong-coupling expansion of multi-band interacting models: mapping onto the transverse-field $J_1$-$J_2$ Ising model
• Unconventional correlated metallic behavior due to interorbital Coulomb interaction
• Magnon damping and mode softening in quantum double-exchange ferromagnets
• Intertwined charge, spin, and orbital degrees of freedom under electronic correlations in the one-dimensional Fe${}^{3+}$ chalcogenide chain
• Eliminating Orbital Selectivity from the Metal-Insulator Transition by Strong Magnetic Fluctuations
• Coupled Hubbard ladders at weak coupling: Pairing and spin excitations