Quantum Tunneling of Magnetization in Single Domain CoFe2O4 Particles T. Oku, H. Takano, M. Ohwada, T. Sato et E. OhtaJ. Phys. IV France, 07 C1 (1997) C1-527-C1-528DOI: https://doi.org/10.1051/jp4:19971215