Magnetization relaxation in the single-molecule magnet Ni4 under continuous microwave irradiationG. de Loubens, D. A. Garanin, C. C. Beedle, D. N. Hendrickson and A. D. KentEPL, 83 3 (2008) 37006DOI: https://doi.org/10.1209/0295-5075/83/37006