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)


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
Issue number1
Publication statusPublished - 2011


Dive into the research topics of 'Suppression of Aharonov-Casher spin interference in an InGaAs ring array'. Together they form a unique fingerprint.

Cite this