FIRST ORDER MAGNETIC TRANSITION, MAGNETIC STRUCTURE AND VACANCY DISTRIBUTION IN Fe2P R. WÄPPLING, L. HÄGGSTRÖM, T. ERICSSON, S. DEVANARAYANAN, E. KARLSSON, B. CARLSSON et S. RUNDQVIST J. Phys. Colloques, 35 C6 (1974) C6-597-C6-601 DOI: 10.1051/jphyscol:19746128