Orbital selective mott phase

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August undefined, 2024

WebMar 11, 2024 · An orbital-selective Mott phase (OSMP) has been extensively discussed as anchoring the orbital-selective correlation phenomena in this regime. Motivated by … WebApr 10, 2024 · In this work, we demonstrate coherent optical control of the orbital occupation that determines the insulator-to-metal transition in the prototypical Mott insulator V 2 O 3. Selective excitation of a specific interband transition with two phase-locked light pulses manipulates the occupation of the correlated bands in a way that …

Is the Orbital-Selective Mott Phase Stable against Interorbital …

WebMotivated by the unexplored complexity of the phase diagrams for multi-orbital Hubbard models, a three-band Hubbard model at integer fillings () with orbital degeneracy lifted partially by crystal field splitting is an… WebAug 23, 2024 · Recently, there is great interest in multiorbital systems where this transition can be restricted to certain orbitals, leading to an orbital-selective Mott phase (OSMP). Theoretically, the OSMP is widely studied for kinetically decoupled orbitals, but the effect … sono tracking

Orbital Selective Mott Transition Effects and Non

WebDec 12, 2016 · We focus on a parameter regime with robust Hund's coupling, which produces an orbital selective Mott phase (OSMP) at intermediate values of the Hubbard U, as well as an orbitally ordered ferromagnetic insulating state at stronger coupling. An examination of the orbital- and spin-correlation functions indicates that the orbital … WebDec 12, 2016 · We focus on a parameter regime with robust Hund's coupling, which produces an orbital selective Mott phase (OSMP) at intermediate values of the Hubbard … WebJan 18, 2024 · Here, we theoretically study the phase transitions of FePS3 using first-principles methods based on density functional theory and embedded dynamical mean … sonotrax 2 mhz waterproof probe

Orbital-selective Mott phase of Cu-substituted iron-based ...

Orbital-Selective Mott transition out of band degeneracy …

WebJun 29, 2024 · Another example of competing interactions is the orbital-selective Mott phase (OSMP) (22, 23). In multiorbital systems, this effect can lead to the selective localization of electrons on some orbitals. The latter coexist with itinerant bands of mobile electrons. This unique mixture of localized and itinerant components in multiorbital … WebOrbital-selective Mott transitions in the anisotropic two-band Hubbard model at finite temp. The anisotropic degenerate two-orbital Hubbard model is studied within dynamical mean-field theory at low temperatures. High-precision calculations on the basis of a refined quantum Monte Carlo (QMC) method reveal that two distinct orbital-selective ... sonotubes cheap small paws pet care

"WebAug 9, 2008 · We outline a general mechanism for Orbital-selective Mott transition (OSMT), the coexistence of both itinerant and localized conduction electrons, and show how it can … " - Orbital selective mott phase

Orbital selective mott phase

WebWe extend previous studies on orbital-selective Mott transitions in the paramagnetic state of the half-filled degenerate two-band Hubbard model to the general doped case, using a … WebApr 5, 2013 · With or without ordered vacancies, we identify a metal-to-Mott-insulator transition at the commensurate filling of six 3d electrons per iron ion. For Hund's …

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WebJun 15, 2024 · The asymmetric DOS strongly influences the energetic of the Mott gap, and the region of orbital-selective Mott phase (OSMP) significantly increases with the increasing NNN hopping amplitude. The Lanczos solver employed in the DMFT calculations is very powerful in finding the critical point of the Mott metal-insulator transition, which has been ... WebMotivated by the unexplored complexity of the phase diagrams for multi-orbital Hubbard models, a three-band Hubbard model at integer fillings () with orbital degeneracy lifted …

WebJun 15, 2024 · In an orbital-selective Mott phase (OSMP), the carriers on a subset of orbitals get localized but others remain itinerant. This phenomenon has been observed … WebJun 21, 2024 · Orbital-resolved a density of states, and b poles of the single-particle spectra of the block-antiferromagnetic orbital selective Mott phase. Various peaks in the density …

WebSep 16, 2024 · Block orbital-selective Mott insulators: A spin excitation analysis Full Record References (70) Related Research Abstract We present a comprehensive study of the spin excitations—as measured by the dynamical spin structure factor S (q,ω)—of the so-called block-magnetic state of low-dimensional orbital-selective Mott insulators. WebJul 6, 2016 · In section 3, we first show the orbital-selective Mott transition (OSMT) introduced by the Hund's rule coupling in undoped compound. Then we study the …

WebJul 6, 2016 · In section 3, we first show the orbital-selective Mott transition (OSMT) introduced by the Hund's rule coupling in undoped compound. Then we study the cooperative effect of the Hund's rule coupling and impurity-induced disorder on the phase transitions in Cu-substituted iron-based superconductors.

WebApr 11, 2024 · We find a large region of orbital-selective Mott phase in the phase diagram when the doping is large enough. Further analysis indicates that the large region of orbital … sonotube rwandaWebMar 9, 2016 · Moreover, an orbital selective Mott transition, defined as the case with $Z_ {\alpha} = 0$ in some, but not all orbitals, could be accessed by epitaxial strain-engineering of correlated... sonova consumer hearing hong kong limitedWebMar 20, 2015 · It is found that an orbital selective Mott phase (OSMP) appears in the isotropic case while it disappears in anisotropic case. Here, the lorentzian broadening factor of is used. (b) Low-energy behavior of of the metallic … so not worth it 2021WebApr 11, 2024 · The proximity to the OSMT plays a dual role, it facilitates the appearance of the topological surface state by bringing the Dirac cone close to the chemical potential, but destroys the Z topological superconductivity when the system is too close to the orbital selective Mott phase (OSMP). We derive a reduced effective Hamiltonian that describes ... sono toulouse locationWebApr 11, 2024 · We find a large region of orbital-selective Mott phase in the phase diagram when the doping is large enough. Further analysis indicates that the large region of orbital-selective Mott phase is ... sonova charge and careWebWe extend previous studies on orbital-selective Mott transitions in the paramagnetic state of the half-filled degenerate two-band Hubbard model to the general doped case, using a high-precision quantum Monte Carlo dyna… sonova consumer hearing japan kkWebDec 29, 2024 · Recently, there is great interest in multiorbital systems where this transition can be restricted to certain orbitals, leading to an orbital-selective Mott phase (OSMP). Theoretically, the OSMP is widely studied for kinetically decoupled orbitals, but the effect of interorbital hopping remains unclear. sonova audiological care hungary kft