Matrix embedded cobalt-carbon nano-cluster magnets: behavior as room temperature single domain magnets N. Nishi, K. Kosugi, K. Hino and T. Yokoyama Eur. Phys. J. D, 24 1-3 (2003) 97-100 Published online: 03 July 2003 DOI: 10.1140/epjd/e2003-00113-x