Our data-driven world demands more—more capacity, more efficiency, more computing power. To meet society's insatiable need for electronic speed, physicists have been pushing the burgeoning field of ...

The (Ga, Mn)As ferromagnetic semiconductors used in our work are favourable candidates for observing the optical spin transfer torque 1,2. The direct-gap GaAs host allows the generation of a high ...

Tunnel junctions were fabricated using optical and electron beam lithography combined with an Ar-ion etching technique and a lift-off process. First, a bottom electrode is patterned using ...