Electrical spin transport in n-doped In0.53Ga0.47As channels

Youn Ho Park; Hyun Cheol Koo; Kyung Ho Kim; Hyung Jun Kim; Suk Hee Han

doi:10.4283/JMAG.2009.14.1.023

Electrical spin transport in n-doped In_0.53Ga_0.47As channels

Youn Ho Park, Hyun Cheol Koo, Kyung Ho Kim, Hyung Jun Kim, Suk Hee Han

KU-KIST Graduate School of Converging Science and Technology

Research output: Contribution to journal › Article

3 Citations (Scopus)

Abstract

Spin injection from a ferromagnet into an n-doped In_0.53Ga_0.47As channel was electrically detected by a ferromagnetic detector. At T = 20 K, using non-local and local spin-valve measurements, a non-local signal of 2 μV and a local spin valve signal of 0.041% were observed when the bias current was 1 mA. The band calculation and Shubnikov-de Haas oscillation measurement in a bulk channel showed that the gate controlled spin-orbit interaction was not large enough to control the spin precession but it could be a worthy candidate for a logic device using spin accumulation and diffusion.

Original language	English
Pages (from-to)	23-26
Number of pages	4
Journal	Journal of Magnetics
Volume	14
Issue number	1
DOIs	https://doi.org/10.4283/JMAG.2009.14.1.023
Publication status	Published - 2009 Oct 15

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Keywords

Electrical spin transport
InGaAs bulk channel
Local spin-valve measurement
Non-local measurement

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Cite this

Park, Y. H., Koo, H. C., Kim, K. H., Kim, H. J., & Han, S. H. (2009). Electrical spin transport in n-doped In_0.53Ga_0.47As channels. Journal of Magnetics, 14(1), 23-26. https://doi.org/10.4283/JMAG.2009.14.1.023

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abstract = "Spin injection from a ferromagnet into an n-doped In0.53Ga0.47As channel was electrically detected by a ferromagnetic detector. At T = 20 K, using non-local and local spin-valve measurements, a non-local signal of 2 μV and a local spin valve signal of 0.041% were observed when the bias current was 1 mA. The band calculation and Shubnikov-de Haas oscillation measurement in a bulk channel showed that the gate controlled spin-orbit interaction was not large enough to control the spin precession but it could be a worthy candidate for a logic device using spin accumulation and diffusion.",

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AU - Koo, Hyun Cheol

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AU - Han, Suk Hee

PY - 2009/10/15

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AB - Spin injection from a ferromagnet into an n-doped In0.53Ga0.47As channel was electrically detected by a ferromagnetic detector. At T = 20 K, using non-local and local spin-valve measurements, a non-local signal of 2 μV and a local spin valve signal of 0.041% were observed when the bias current was 1 mA. The band calculation and Shubnikov-de Haas oscillation measurement in a bulk channel showed that the gate controlled spin-orbit interaction was not large enough to control the spin precession but it could be a worthy candidate for a logic device using spin accumulation and diffusion.

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KW - Non-local measurement

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10.4283/JMAG.2009.14.1.023