- Tytuł:
- Current-Driven Magnetoresistance Oscillations in Asymmetric Spin Valves
- Autorzy:
-
Gmitra, M.
BarnaŚ, J. - Powiązania:
- https://bibliotekanauki.pl/articles/1814032.pdf
- Data publikacji:
- 2007-12
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
75.60.Ch
75.70.Cn
75.70.Pa - Opis:
- Within the macroscopic model we have calculated spin-transfer torque in asymmetric spin valves in the diffusive transport limit.Such systems exhibit a non-standard angular dependence of the torque, which leads to current-induced precessional modes at zero external magnetic field. We have found that the frequency of magnetoresistance oscillations exhibits hysteretic behavior when the system is driven between two steady precessional regimes. A finite temperature can suppress the irreversibility and give rise to bistable regime where, both the precessional regimes coexist.
- Źródło:
-
Acta Physica Polonica A; 2007, 112, 6; 1267-1270
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł