Gate-controlled switching between persistent and inverse persistent spin helix states
Gate-controlled switching between persistent and inverse persistent spin helix states
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DOI:
10.1063/1.4944931
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发表时间:
2016-03
影响因子:
4
通讯作者:
K. Yoshizumi;A. Sasaki;M. Kohda;J. Nitta
中科院分区:
文献类型:
--
作者:
K. Yoshizumi;A. Sasaki;M. Kohda;J. Nitta
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.