TY - JOUR
T1 - Current-induced transverse spin-wave instability in thin ferromagnets
T2 - Beyond linear stability analysis
AU - Adam, Shaffique
AU - Polianski, Mikhail L.
AU - Brouwer, Piet W.
PY - 2006
Y1 - 2006
N2 - A sufficiently large unpolarized current can cause a spin-wave instability in thin nanomagnets with asymmetric contacts. The dynamics beyond the instability is understood in the perturbative regime of small spin-wave amplitudes, as well as by numerically solving a discretized model. In the absence of an applied magnetic field, our numerical simulations reveal a hierarchy of instabilities, leading to chaotic magnetization dynamics for the largest current densities we consider.
AB - A sufficiently large unpolarized current can cause a spin-wave instability in thin nanomagnets with asymmetric contacts. The dynamics beyond the instability is understood in the perturbative regime of small spin-wave amplitudes, as well as by numerically solving a discretized model. In the absence of an applied magnetic field, our numerical simulations reveal a hierarchy of instabilities, leading to chaotic magnetization dynamics for the largest current densities we consider.
UR - https://www.scopus.com/pages/publications/33144462062
U2 - 10.1103/PhysRevB.73.024425
DO - 10.1103/PhysRevB.73.024425
M3 - Article
AN - SCOPUS:33144462062
SN - 1098-0121
VL - 73
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 2
M1 - 024425
ER -