Gate-controlled switching between persistent and inverse persistent spin helix states

K. Yoshizumi, A. Sasaki, M. Kohda, J. Nitta

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We demonstrate gate-controlled switching between persistent spin helix (PSH) state and inverse PSH state, which are detected by quantum interference effect on magneto-conductance. These special symmetric spin states showing weak localization effect give rise to a long spin coherence when the strength of Rashba spin-orbit interaction (SOI) is close to that of Dresselhaus SOI. Furthermore, in the middle of two persistent spin helix states, where the Rashba SOI can be negligible, the bulk Dresselhaus SOI parameter in a modulation doped InGaAs/InAlAs quantum well is determined.

Original languageEnglish
Article number132402
JournalApplied Physics Letters
Volume108
Issue number13
DOIs
Publication statusPublished - 2016 Mar 28

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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