Autor: Gmitra, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Thermally Assisted Current-Driven Dynamics in Asymmetric Spin Valves
Autorzy:: Gmitra, M.
Barnaś, J.
Horváth, D.
Powiązania:: https://bibliotekanauki.pl/articles/1813513.pdf
Data publikacji:: 2008-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.60.Ch
75.70.Cn
Opis:: Current-induced steady precessional modes in standard spin valves are usually excited as an interplay of spin-transfer torque, Gilbert damping, and external magnetic field. We propose an asymmetric spin valve, in which the spin current can excite stationary precessional modes also at zero external magnetic field. We also show that finite temperature can induce transitions between different dynamical modes. These transitions, in turn, lead to telegraph noise in magnetoresistance.
Źródło:: Acta Physica Polonica A; 2008, 113, 1; 31-34
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Current-Pulse-Induced Switching οf Asymmetric Spin Valves
Autorzy:: Baláž, P.
Gmitra, M.
Barnaś, J.
Powiązania:: https://bibliotekanauki.pl/articles/1810525.pdf
Data publikacji:: 2009-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 72.25.Ba
73.21.Ac
Opis:: Dynamical behavior of an asymmetric spin valve, Co/Cu/Py nanopillar sandwiched between Cu electrodes, subject to a spin-polarized current was investigated in the diffusive transport regime. Using numerical macrospin simulations, the dynamical diagrams of the sensing layer were constructed, and the possibilities of switching from one collinear state to the other were discussed. A simple switching scheme for asymmetric spin valves, based on a sequence of current and magnetic field pulses, was proposed and illustrated on an example.
Źródło:: Acta Physica Polonica A; 2009, 115, 1; 278-280
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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