Orbital selective mott phase

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August undefined, 2024

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 · 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 ...

A dynamical mean-field study of orbital-selective Mott

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 ... 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. share an excel file for editing

Orbital-selective Mott phase as a dehybridization fixed point

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 … 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 … 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 … pool guy supply

(PDF) Tuning a Strain-Induced Orbital Selective Mott Transition in ...

Is the Orbital-Selective Mott Phase Stable against …

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 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 … share an excel fileWebAug 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 … pool guard safety fence

"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 … " - Orbital selective mott phase

Orbital selective mott phase

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 … 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 …

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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. 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 …

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. 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, …

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 … WebMar 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...

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 …

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 … share an excel file on microsoft teamsWebJun 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 … share an excel file on sharepointWebMay 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, … pool guy supply incWebSep 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. share an excel file on google driveWebOrbital-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 ... share an excel file for multiple usersWebAug 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. share an excel spreadsheetWebJun 15, 2024 · Orbital selective Mott phase (OSMT), i.e., with the increasing Coulomb interaction, a two-orbital electronic system transits from a metal to a particular phase … pool h actiris