Orbital selective mott phase
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 … 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 phase
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WebJun 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 … 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...
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 …
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. 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.
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, …
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 … billy\u0027s restaurant fremont ohWebJun 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 … cynthia horton idahoWebJun 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 ... cynthia hoskins panama cityWebApr 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 ... cynthia horta fontana caWebApr 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 … billy\u0027s restaurant fremont ohioWebSep 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. cynthia hortolaWebJan 18, 2024 · Here, we theoretically study the phase transitions of FePS3 using first-principles methods based on density functional theory and embedded dynamical mean … cynthia hoss hutchinson ks