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Transition from Weak to Strong Spin-Orbit Scattering Effect on Conductance Fluctuation in InGaAs/InAlAs Quantum Wires

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Science and Technology of Mesoscopic Structures

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Summary

Conductance fluctuations (CFs) in GaAs/AlGaAs and InGaAs/InAlAs quantum wires were investigated at temperatures ranging from 2 down to 0.06 K. The temperature dependence of the amplitude of CF <δg> did not increase monotonically with decreasing temperature. The temperature dependence of the InGaAs/InAlAs quantum wire followed a one-half reduction of <δg> which was theoretically predicted to appear in the strong spin-orbit scattering limit. We found that the observed temperature dependence correlated well with the transition from weak to strong spin-orbit scattering regimes at very low temperatures. This transition was not as clearly observed in the GaAs/A1GaAs wire as in the InGaAs/InAlAs wire, probably due to the weaker spin-orbit scattering effect.

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Author information

Authors and Affiliations

  1. NTT LSI Laboratories, 3-1 Morinosato Wakamiya, Atsugi, Kanagawa, 243-01, Japan

    Yoshino K. Fukai & Kunihiro Arai

  2. NTT Basic Research Laboratories, Midori-cho 3-9-11, Musashino, Tokyo, 180, Japan

    Seigo Tarucha

Authors
  1. Yoshino K. Fukai
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  2. Hayato Nakano
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  3. Shunji Nakata
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  4. Seigo Tarucha
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  5. Kunihiro Arai
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Editor information

Editors and Affiliations

  1. 536 Aba-machi, 851-01, Nagasaki, Japan

    Susumu Namba (Professor Emeritus of Osaka University, Professor of Nagasaki Institute of Applied Science) (Professor Emeritus of Osaka University, Professor of Nagasaki Institute of Applied Science)

  2. Department of Electronic Engineering, Osaka University, Yamadaoka 2-1, Suita City, Osaka, 565, Japan

    Chihiro Hamaguchi (Professor) (Professor)

  3. Institute for Solid State Physics, University of Tokyo, 7-22-1 Roppongi, Minato-ku, Tokyo, 106, Japan

    Tsuneya Ando (Professor) (Professor)

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© 1992 Springer Japan

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Fukai, Y.K., Nakano, H., Nakata, S., Tarucha, S., Arai, K. (1992). Transition from Weak to Strong Spin-Orbit Scattering Effect on Conductance Fluctuation in InGaAs/InAlAs Quantum Wires. In: Namba, S., Hamaguchi, C., Ando, T. (eds) Science and Technology of Mesoscopic Structures. Springer, Tokyo. https://doi.org/10.1007/978-4-431-66922-7_21

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  • DOI: https://doi.org/10.1007/978-4-431-66922-7_21

  • Publisher Name: Springer, Tokyo

  • Print ISBN: 978-4-431-66924-1

  • Online ISBN: 978-4-431-66922-7

  • eBook Packages: Springer Book Archive

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