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arXiv · 1807.08958

Efficient Edelstein effects in one-atom-layer Tl-Pb compound

Y. Shiomi·K. T. Yamamoto·R. Nakanishi·T. Nakamura·S. Ichinokura·R. Akiyama·S. Hasegawa·E. Saitoh
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Abstract

We have investigated direct and inverse Edelstein effects in a one-atom-layer Tl-Pb compound with a large Rashba-type spin splitting. In spin pumping experiments at room temperature, spin-to-charge conversion voltage due to the inverse Edelstein effect is clearly observed in Py/Cu/Tl-Pb trilayer samples. To confirm efficient spin-charge interconversion in Tl-Pb compounds, the direct Edelstein effect is also studied in the same trilayer samples by measuring modulation of the effective magnetization damping in the Py layer via the charge-to-spin conversion in the Tl-Pb layer. Using both the results of direct and inverse Edelstein effects, the Edelstein length is estimated to be ~0.1 nm for Tl-Pb compounds.

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Y. Shiomi, K. T. Yamamoto, R. Nakanishi, T. Nakamura, S. Ichinokura, R. Akiyama, S. Hasegawa, E. Saitoh. 2018-07-24. Efficient Edelstein effects in one-atom-layer Tl-Pb compound. https://doi.org/10.1063/1.5040546

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