Orbital selective mott phase

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August undefined, 2024

WebSep 30, 2015 · Calculated phase diagram of the orbital-selective Mott phase for AFS and FTS where the vertical axis is temperature and the horizontal axes are Coulomb repulsion U and the electron filling. The blue curves indicate transitions into the orbital-selective Mott phase while the red line indicates transition into the Mott insulating phase. WebSep 7, 2024 · An important characteristics of the models is that the orbitals are kinetically coupled, i.e., hybridized, to each other, which makes the orbital-selective Mott phase especially nontrivial. A U (1) slave-spin method was used to analyze the model with nonzero orbital-level splittings.

Orbital-selective Mott transitions in the anisotropic two-band …

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 … WebThe VO2 is a 3d1 electron system that undergoes a reversible metal–insulator transition (MIT) triggered by temperature and characterized by an interplay between orbital, charge and lattice degrees of freedom. The characterization of the MIT features are therefore extremely challenging and powerful investigation tools are required. In this work, … shane templar cell phone

Nonlocal correlations in the orbital selective Mott phase of a one ...

WebMay 4, 2024 · Here we demonstrate that the bandwidth-control orbital-selective delocalization of 4 f electrons can be realized in epitaxial Ce films by thermal annealing, … 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 … WebDec 29, 2024 · Fabian B. Kugler, Gabriel Kotliar. The localization-delocalization transition is at the heart of strong correlation physics. Recently, there is great interest in multiorbital … shane templeton

Physical Review B - Accepted Paper: Coherent control of the orbital …

Bandwidth-control orbital-selective delocalization of 4f electrons in

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 … shane tennantWebOrbital-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 ... shane tendick

"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-selective Mott phase is ... " - Orbital selective mott phase

Orbital selective mott phase

Orbital Selective Mott Transition Effects and Non

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 … WebDec 8, 2024 · The effect of interorbital hopping on the orbital selective Mottness in a two-band correlation system is investigated by using the dynamical mean-field theory with the …

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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… 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 …

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 … WebThrough gradient orbital coupling, the induced spin-up hole in Co 3d states endows the Er-O-Co unit active site with a spin-selective coupling channel for electron transition. This favors the decrease of the energy gap in the potential-limiting step, thus achieving a high theoretical limiting potential of 0.77 V RHE for the Er 2 O 3-Co.

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 of interorbital hopping remains unclear. 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 high-precision quantum Monte Carlo dyna…

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 …

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 ... shane terral obitWebMar 11, 2024 · An orbital-selective Mott phase (OSMP) has been extensively discussed as anchoring the orbital-selective correlation phenomena in this regime. Motivated by … shane telescopeWebMar 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 … shane terral obituaryWebSep 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. shane television showWebDec 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. shane temple footballerWebJan 18, 2024 · Here, we theoretically study the phase transitions of FePS3 using first-principles methods based on density functional theory and embedded dynamical mean … shane team usa hockeyWebApr 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 … shane terrell facebook