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- W4283659661 abstract "Oxide two-dimensional electron gases (2DEGs) promise high charge carrier concentrations and low-loss electronic transport in semiconductors such as BaSnO$_{3}$ (BSO). ACBN0 computations for BSO/SrNbO$_{3}$ (SNO) interfaces show Nb-4$textit{d}$ electron injection into extended Sn-5$textit{s}$ electronic states. The conduction band minimum consists of Sn-5$textit{s}$ states ~1.2 eV below the Fermi level for intermediate thickness 6-unit cell BSO/6-unit cell SNO superlattices, corresponding to an electron density in BSO of ~10$^{21}$ cm$^{-3}$. Experimental studies of analogous SNO/BSO interfaces grown by molecular beam epitaxy confirm significant charge transfer from SNO to BSO. $textit {In situ}$ angle-resolved X-ray photoelectron spectroscopy studies show an electron density of ~4 $times$ 10$^{21}$ cm$^{-3}$. The consistency of theory and experiment shows that BSO/SNO interfaces provide a novel materials platform for low loss electron transport in 2DEGs." @default.
- W4283659661 created "2022-06-29" @default.
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- W4283659661 date "2022-06-23" @default.
- W4283659661 modified "2023-10-13" @default.
- W4283659661 title "High Mobility Two-Dimensional Electron Gas at the BaSnO$_{3}$/SrNbO$_{3}$ Interface" @default.
- W4283659661 doi "https://doi.org/10.48550/arxiv.2206.12028" @default.
- W4283659661 hasPublicationYear "2022" @default.
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