Spin injection in Si-based ferromagnetic tunnel junctions with MgO/MgAl2O4 barriers:Experimental and theoretical investigation of barrier thickness-dependent spin tunneling efficiency

Baisen Yu, Shoichi Sato, Masaaki Tanaka +1

We have experimentally and theoretically investigated the spin transport in Fe/Mg/MgO/MgAl2O4/n+-Si(001) ferromagnetic tunnel junctions on a Si substrate, by systematically varying…