Table 1 Coercivity (H c) and remanence ratio (M r/M s) measured at 5 K for the pristine and irradiated Ni-SiO2 nanogranular film with magnetic field parallel and perpendicular to the 120 MeV Au+ 9 ion beam direction.
Sample | Parallel | Perpendicular | ||
---|---|---|---|---|
H c (Oe) | M r / M s | H c (Oe) | M r / M s | |
Pristine | 168 | 0.19 | 208 | 0.56 |
Irradiated | 457 | 0. 45 | 388 | 0.54 |