Suppression of weak ferromagnetism in small particles of Gd2CuO4 J. Mira, J. Rivas, J. Mahía, C. Vázquez-Vázquez, M. A. López-Quintela, A. Butera, M. Tovar and S. B. Oseroff Europhys. Lett., 34 8 (1996) 623-628 Published online: 01 September 2002 DOI: 10.1209/epl/i1996-00506-9