Spin-injection mechanism of magnetization reversal and hysteresis of current in magnetic junctions

Effect of current on magnetization oscillations in the ferromagnet-antiferromagnet junction

“…In our termi nology, these are (i) the transfer of spins and torque to the lattice by the current and (ii) injection of nonequi librium spins by current to the conduction band. Both modes were discussed by us earlier [22][23][24][25]. It will be shown below that these modes also affect the interac tion of polarized current with the AFM layer in differ ent ways.…”

Spin injection-driven switching in a magnetic junction

“…It was discussed in Refs. [3,4]. This additional channel of switching arises due to spin injection by the current.…”

Magnetization reversal and current hysteresis due to spin injection in magnetic junction

“…The condition of spin current continuity in the form (6) has been derived by different way in [10]. In our case, however, it is more convenient to rewrite (6) in terms of the function ( ) ( )…”

“…The drift term is omitted here because it is negligibly small in metals for current density range used (for more details see [10]). Analogous equation may be written for the layer 3 also.…”

“…We continue here to develop the theoretical approach proposed firstly in the paper [10] and show a novel spin-injection mechanism may act deep in the bulk of the ferromagnetic layer in a range of a spin-diffusion length l. The latter one may be large enough, namely l ~ 10 -100 nm for ferromagnetic metals. We believe this bulk mechanism is a complementary one to the mechanism proposed and discussed in the papers [1, 2, 12, and 13].…”