Spin-fluctuation mediated high-temperature ferromagnetism in Si:Mn dilute magnetic semiconductors V. N. Men'shov, V. V. Tugushev and S. Caprara Eur. Phys. J. B, 77 3 (2010) 337-343 Published online: 22 September 2010 DOI: 10.1140/epjb/e2010-00271-6