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Paper detail

Efficient intrinsic spin-to-charge current conversion in an all-epitaxial single-crystal perovskite-oxide heterostructure of La0.67Sr0.33MnO3/LaAlO3/SrTiO3

We demonstrate efficient intrinsic spin-to-charge current conversion in a two-dimensional electron gas using an all-epitaxial single-crystal heterostructure of LaSrMnO3/ LaAlO3 (LAO)/ SrTiO3 (STO), which can suppress spin scattering and give us an ideal environment to investigate intrinsic spin-charge conversion. With decreasing temperature to 20 K, the spin-to-charge conversion efficiency is drastically enhanced to +3.9 nm, which is the largest positive value ever reported for LAO/STO. Our band-structure calculation well reproduces this behavior and predicts further enhancement by controlling the density and relaxation time of the carriers.

preprint2019arXivOpen access
Shinobu OhyaDaisei ArakiLe Duc AnhShingo KanetaMunetoshi SekiHitoshi TabataMasaaki Tanaka
cond-mat.mes-hallcond-mat.mtrl-sci
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Shinobu OhyaDaisei ArakiLe Duc AnhShingo KanetaMunetoshi SekiHitoshi TabataMasaaki Tanaka

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