F. D. Czeschka, L. Dreher, M. S. Brandt, M. Weiler, M. Althammer, I. -M. Imort, G. Reiss, A. Thomas, W. Schoch, W. Limmer, H. Huebl, R. Gross, S. T. B. Goennenwein: Scaling Behavior of the Spin Pumping Effect in Ferromagnet-Platinum Bilayers. 2011Physical Review Letters: 107. ISBN 0031-9007 http://dx.doi.org/10.1103/PhysRevLett.107.046601