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- W2953849960 abstract "The spin-filter material CrVTiAl is a promising candidate for producing highly spin-polarized currents at room temperature in a nonmagnetic architecture. Thin films of compensated-ferrimagnetic CrVTiAl have been grown and their electrical and magnetic properties have been studied. The resistivity shows two-channel semiconducting behavior with one disordered gapless channel and a gapped channel with activation energy $Delta E$=~0.1~-~0.2~eV. Magnetoresistance measurements to B~=~35~T provide values for the mobilities of the gapless channel, leading to an order of magnitude difference in the carrier effective masses, which are in reasonable accord with our density-functional-theory based results. The density of states and electronic band structure is computed for permutations of the four sublattices arranged differently along the (111) body diagonal, yielding metallic (Cr-V-Al-Ti), spin-gapless (Cr-V-Ti-Al) and spin-filtering (Cr-Ti-V-Al) phases. Robustness of the spin-gapless phase to substitutional disorder is also considered." @default.
- W2953849960 created "2019-07-12" @default.
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- W2953849960 date "2019-06-28" @default.
- W2953849960 modified "2023-10-15" @default.
- W2953849960 title "Electrical and magnetic properties of thin films of the spin-filter material CrVTiAl" @default.
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- W2953849960 doi "https://doi.org/10.1103/physrevb.99.224207" @default.
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