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- W4320342462 abstract "In Mott materials strong electron correlation yields a spectrum of complex electronic structures. Recent synthesis advancements open realistic opportunities for harnessing Mott physics to design transformative devices. However, a major bottleneck in realizing such devices remains the lack of control over the electron correlation strength. This stems from the complexity of the electronic structure, which often veils the basic mechanisms underlying the correlation strength. Here, we present control of the correlation strength by tuning the degree of orbital overlap using picometer-scale lattice engineering. We illustrate how bandwidth control and concurrent symmetry breaking can govern the electronic structure of a correlated $SrVO_3$ model system. We show how tensile and compressive biaxial strain oppositely affect the $SrVO_3$ in-plane and out-of-plane orbital occupancy, resulting in the partial alleviation of the orbital degeneracy. We derive and explain the spectral weight redistribution under strain and illustrate how high tensile strain drives the system towards a Mott insulating state. Implementation of such concepts will drive correlated electron phenomena closer towards new solid state devices and circuits. These findings therefore pave the way for understanding and controlling electron correlation in a broad range of functional materials, driving this powerful resource for novel electronics closer towards practical realization." @default.
- W4320342462 created "2023-02-13" @default.
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- W4320342462 date "2023-02-08" @default.
- W4320342462 modified "2023-10-16" @default.
- W4320342462 title "Bandwidth Control and Symmetry Breaking in a Mott-Hubbard Correlated Metal" @default.
- W4320342462 doi "https://doi.org/10.48550/arxiv.2302.04372" @default.
- W4320342462 hasPublicationYear "2023" @default.
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