Enhancement of thermovoltage and tunnel magneto-Seebeck effect in CoFeB based magnetic tunnel junctions by variation of the MgAl${}_2$O${}_4$ and MgO barrier thickness

Torsten Huebner, Ulrike Martens, Jakob Walowski +7

We investigate the influence of the barrier thickness of Co${}_{40}$Fe${}_{40}$B${}_{20}$ based magnetic tunnel junctions on the laser-induced tunnel magneto-Seebeck effect. Varying the…