The 8-doping manipulable temporal spin splitter for electron in semiconductor magnetic quantum microstructure

摘要

We theoretically investigate the effect of a 8-potential to a temporal spin splitter for electron in a semiconductor magnetic quantum microstructure (SMQM), which is realized by patterning a perpendicularly-magnetized ferromagnetic stripe on top of InAs/AlxIn1-xAs. The dwell time for electron in the 8-doped SMQM is still spin polarized, because electron spin interacts with structural magnetic field. The spin-dependent dwell time is modulated by switching the 8-potential owing to the dependence of effective potential felt by electron on the 8-doping. These significant findings demonstrate that such a 8-doped SMQM acts as a manipulable temporal electron-spin splitter, which may be helpful for design of spintronic devices.

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