Proximity-effect–assisted decay of spin currents in superconductors J. P. Morten, A. Brataas, G. E. W. Bauer, W. Belzig and Y. Tserkovnyak EPL, 84 5 (2008) 57008 Published online: 10 December 2008 DOI: 10.1209/0295-5075/84/57008