Magnetization reversal and two-level fluctuations by spin injection in a ferromagnetic metallic layer
نویسندگان
چکیده
منابع مشابه
Spin-Wave Effects in the Magnetization Reversal of a Thin Ferromagnetic Film
The influence of spin waves on rapid rotational magnetization reversal (switching) in a thin ferromagnetic film is investigated by means of a semiclassical, continuum theory which includes external, anisotropy, exchange, and magnetostatic (dipolar) fields. To simplify the magnetostatic field, a "thin-film approximation" is introduced, in which the magnetization is replaced by its average over t...
متن کاملElectrical manipulation of magnetization reversal in a ferromagnetic semiconductor.
We report electrical manipulation of magnetization processes in a ferromagnetic semiconductor, in which low-density carriers are responsible for the ferromagnetic interaction. The coercive force HC at which magnetization reversal occurs can be manipulated by modifying the carrier density through application of electric fields in a gated structure. Electrically assisted magnetization reversal, a...
متن کاملSpin-polarized half-metallic state of a ferromagnetic δ layer in a semiconductor host
S. Caprara,1,2 V. V. Tugushev,3,4 and E. V. Chulkov1,4 1Donostia International Physics Center (DIPC), P. de Manuel Lardizabal 4, 20018 San Sebastián, Basque Country, Spain 2Dipartimento di Fisica, Università di Roma “La Sapienza,” Piazzale Aldo Moro 2, 00185 Rome, Italy 3RRC Kurchatov Institute, Kurchatov Square 1, 123182 Moscow, Russia 4Departamento de Fı́sica de Materiales, Facultad de Ciencia...
متن کاملMagnetization reversal of permalloy film by pure spin current injection: relation between reversal time and injected surface
The dynamics of the magnetization reversal process in a nanosized permalloy film by the pure spin current (PSC) injection is analyzed. We have performed micromagnetic simulation based on the Landau-Lifshitz equation taking into account both the relaxation term and spin transfer torque term caused by the PSC. PSC is injected into the permalloy from a side of the film. We compare the magnetizatio...
متن کاملSwitching magnetization of a nanoscale ferromagnetic particle using nonlocal spin injection.
We have performed nonlocal spin injection into a nanoscale ferromagnetic particle configured in a lateral spin-valve structure to switch its magnetization only by spin current. The nonlocal spin injection aligns the magnetization of the particle parallel to the magnetization of the spin injector. The spin current responsible for switching is estimated from the experiment to be about 200 microA,...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2003
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.68.214414