RECORDED MAGNETIZATION PATTERNS OF HIGHLY c-AXIS ORIENTED Co-Cr FILM OBSERVED BY ELECTRON HOLOGRAPHY Y. Honda, M. Futamoto, S. Hasegawa†, T. Kawasaki†, F. Kugiya, M. Koizuwi, K. Yoshida et A. Tonomura† J. Phys. Colloques, 49 C8 (1988) C8-1969-C8-1970 DOI: 10.1051/jphyscol:19888892