Ferromagnetic-semiconductor spin polarizer of electrons in...

Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode

Reexamination Certificate

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C257S421000

Reexamination Certificate

active

11071535

ABSTRACT:
An efficient spin polarizer in nonmagnetic semiconductors is provided. Previous spin injection devices suffered from very low efficiency (less than 35%) into semiconductors. An efficient spin polarizer is provided which is based on ferromagnetic-semiconductor heterostructures and ensures spin polarization of electrons in nonmagnetic semiconductors close to 100% near the ferromagnetic-semiconductor junctions at wide temperature intervals ranging from very low temperatures to room temperatures even in the case when spin polarization of electrons in the ferromagnetic layer is relatively low.

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