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

Junsaku Nitta, Jun Takagi, Fumiya Nagasawa, Makoto Kohda

Research output: Contribution to journalArticlepeer-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 languageEnglish
Article number012002
JournalJournal of Physics: Conference Series
Volume302
Issue number1
DOIs
Publication statusPublished - 2011

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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