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(a) Schematic views of a spin injection Hall device. (b) The charge current flows through Pt. (c) The charge current flows from Py to the left edge of Cu.
Electrochemical potentials (ECPs) for the up and down spin channels from the top center of the Cu (the right region of 0) to the Py (the left region of 0) along the arrow of the upper figure. Inset: The diffusion profile of the ECP at the top center of the whole Cu wire along the -direction.
The charge current induced spin accumulation signal between Py and Cu as a function of the Py/Cu contact area for various values of , , and . Inset: The applied current arrangement in the device.
(a) The spin current induced Hall voltage signals throughout the Pt electrode for various values of , , and as a function of the cross sectional area of the Pt electrode . Each symbol corresponds to the combination of the width of two electrodes for various values of ranging from . Inset: The applied current arrangement in the device. (b) The spatial distribution on the bottom of the Pt electrode for the charge current and the up and down spin currents , . (c) The spatial distribution of the - and -components and of the absorbed spin current into Pt through the interface at the front bottom of the Pt electrode as a function of . Inset: Side view of the spin current absorption.
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