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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.

From: Ion beam-induced shaping of Ni nanoparticles embedded in a silica matrix: from spherical to prolate shape

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

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