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A large positive room temperature magnetoresistance (MR) up to ~30% at 50kOe was obtained in nanogranular FeCo–Si–N thin film prepared by magnetron sputtering. The quasi-linear dependence of MR on the magnetic field is observed for the fields above 20kOe. The properties of the films depend on both the nonmagnetic component volume and film thickness. To achieve high MR, a proper Si–N content and a...
Single domain particles (50–150nm) of the M-type strontium ferrite (SrFe 12 O 19 ) were synthesized via co-precipitation method using cetyltrimethyl ammonium bromide (CTAB) as a surfactant, followed by heat treatment at 900°C for 2h. The effects of CTAB contents (x=0, 1, 3, 6, 9wt.%) on formation, structure, morphology and magnetic properties of the strontium hexaferrite particles...
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