Large magnetoresistance in bcc Co/MgO/Co and FeCo/MgO/FeCo tunneling junctions

X. -G. Zhang, W. H. Butler

By use of first-principles electronic structure calculations, we predict that the magnetoresistance of the bcc Co(100)/MgO(100)/bcc Co(100) and FeCo(100)/MgO(100)/FeCo(100) tunneli…