10:00 AM - 10:15 AM ▲ [12a-S302-5] Giant tunnel magnetoresistance under bias voltages in a magnetic tunnel junctions with a tri-layered MgO/MgAl2O4/MgO barrier 〇Kenji Nawa1,2, Keisuke Masuda2, Yoshio Miura2 (1.Mie Univ., 2.NIMS)