Radiation- and phonon-bottleneck–induced tunneling in the Fe8 single-molecule magnet M. Bal, Jonathan R. Friedman, W. Chen, M. T. Tuominen, C. C. Beedle, E. M. Rumberger and D. N. Hendrickson EPL, 82 1 (2008) 17005 Published online: 05 March 2008 DOI: 10.1209/0295-5075/82/17005