Nonautonomous helical motion of magnetization in ferromagnetic nanowire driven by spin-polarized current and magnetic fieldF. Zhao, Z.D. Li, P.B. He, Q.Y. Li and W.M. LiuEur. Phys. J. B, 84 2 (2011) 197-202DOI: https://doi.org/10.1140/epjb/e2011-20299-2