ELABORATION OF M-TYPE Ba-FERRITES FILMS BY R.F. SPUTTERING E. Lacroix, P. Gerard, D. Challeton, B. Rolland et B. Bechevet J. Phys. Colloques, 49 C8 (1988) C8-941-C8-942 DOI: 10.1051/jphyscol:19888429