Giant magnetoresistance in the junction of two ferromagnets on the surface of diffusive topological insulators

Katsuhisa Taguchi, Takehito Yokoyama, Yukio Tanaka

We reveal the giant magnetoresistance induced by the spin-polarized current in the ferromagnet (F_1)/topological insulator (TI)/ferromagnet (F_2) junction, where two ferromagnets a…