Suppression of Aharonov-Casher spin interference in an InGaAs ring array

Junsaku Nitta; Jun Takagi; Fumiya Nagasawa; Makoto Kohda

doi:10.1088/1742-6596/302/1/012002

Suppression of Aharonov-Casher spin interference in an InGaAs ring array

Junsaku Nitta, Jun Takagi, Fumiya Nagasawa, Makoto Kohda

ENG - Materials Science

Tohoku University

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

An Aharonov-Casher (AC) spin interference is studied in a gate-fitted InGaAs ring array. The AC interference period is consistent with gate voltage dependence of Rashba spin-orbit interaction parameter in a single subband occupied region. However, the AC interference amplitude and oscillations are suppressed above a particular gate voltage where the second subband is occupied. This suppression is attributed to the decoherence induced by inter-subband scattering.

Original language	English
Article number	012002
Journal	Journal of Physics: Conference Series
Volume	302
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/302/1/012002
Publication status	Published - 2011

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title = "Suppression of Aharonov-Casher spin interference in an InGaAs ring array",

abstract = "An Aharonov-Casher (AC) spin interference is studied in a gate-fitted InGaAs ring array. The AC interference period is consistent with gate voltage dependence of Rashba spin-orbit interaction parameter in a single subband occupied region. However, the AC interference amplitude and oscillations are suppressed above a particular gate voltage where the second subband is occupied. This suppression is attributed to the decoherence induced by inter-subband scattering.",

author = "Junsaku Nitta and Jun Takagi and Fumiya Nagasawa and Makoto Kohda",

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T1 - Suppression of Aharonov-Casher spin interference in an InGaAs ring array

AU - Nitta, Junsaku

AU - Takagi, Jun

AU - Nagasawa, Fumiya

AU - Kohda, Makoto

PY - 2011

Y1 - 2011

N2 - An Aharonov-Casher (AC) spin interference is studied in a gate-fitted InGaAs ring array. The AC interference period is consistent with gate voltage dependence of Rashba spin-orbit interaction parameter in a single subband occupied region. However, the AC interference amplitude and oscillations are suppressed above a particular gate voltage where the second subband is occupied. This suppression is attributed to the decoherence induced by inter-subband scattering.

AB - An Aharonov-Casher (AC) spin interference is studied in a gate-fitted InGaAs ring array. The AC interference period is consistent with gate voltage dependence of Rashba spin-orbit interaction parameter in a single subband occupied region. However, the AC interference amplitude and oscillations are suppressed above a particular gate voltage where the second subband is occupied. This suppression is attributed to the decoherence induced by inter-subband scattering.

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JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

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ER -

Suppression of Aharonov-Casher spin interference in an InGaAs ring array

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