This letter studies the dynamical behavior of spin-Hall nanoscillators from a micromagnetic point of view. The model parameters have been identified by reproducing recent experimental data quantitatively. Our results indicate that a strongly localized mode is observed for in-plane bias fields such as in the experiments, while predict the excitation of an asymmetric propagating mode for large enough out-of plane bias field similarly to what observed in spin-torque nanocontact oscillators. Our findings show that spin-Hall nanoscillators can find application as spin-wave emitters for magnonic applications where spin waves are used for transmission and processing information on nanoscale.
@article{arxiv.1407.7655,
title = {Spin-Hall Nano-oscillator: a micromagnetic study},
author = {A. Giordano and M. Carpentieri and A. Laudani and G. Gubbiotti and B. Azzerboni and G. Finocchio},
journal= {arXiv preprint arXiv:1407.7655},
year = {2015}
}