16:30 〜 16:45 [16p-D704-12] Spin polarization and magnetoresistance in a back-gated spin MOSFET structure with Fe/Mg/MgO/SiOx/n+-Si junctions 〇(PC)佐藤 彰一1,2、田中 雅明1,2、中根 了昌1 (1.東大院工、2.CSRN)