Abstract
Excellent soft magnetic properties have been achieved in low metal volume fraction( x ∼ 0.52) of (Ni 75 Fe 25 ) x (SiO 2 ) 1− x granular film fabricated by magnetron sputtering. The coercivity of 247 A m − 1 with very high resistivity ρ over 1.18 × 10 4 μΩ cm has been obtained. At the frequency lower than 1 GHz, the real part μ ′ of the complex permeability keeps about 55 and the imaginary part μ ʺ is less than 2. A combined study of TEM and XRD indicates that the sample consists of Ni 75 Fe 25 particles uniformly embedded in insulating SiO 2 matrix. The excellent soft magnetic properties are ascribed to the magnetic dipole interaction between particles. The investigations of field cooled and zero field cooled curves as well as Henkle Plot prove the existence of this intergranular interaction.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
