Blocking effects in magnetics resonance? The ferromagnetic nanowires case.

RAMOS CARLOS ALBERTO; DE BIASI EMILIO; ZYSLER ROBERTO DANIEL; VASSALLO BRIGNETI ETTORE; VÁZQUEZ MANUEL

San Sebastian, España

Conferencia; III Joint European Magnetic Symposia; 2006

We present ferromagnetic resonance (FMR) data on Ni nanowires measured at L, X, and Q bands (1.2, 9.4 and 34 GHz). The hysteretic response of the FMR spectra is modeled in terms of independent contributions of the nanowires aligned along and opposite to the applied field. We discuss the implications of this study on the magnetic resonance in nanoparticles and other systems with large anisotropy.