Abstract
Abstract FeGa/Mn film were fabricated on Si (0 0 1) substrates by pulsed laser deposition system at room temperature. The static and dynamic magnetic properties of FeGa/Mn (Fe80Ga20/Mn) film were examined to tailor their magnetic softness, magnetization, low temperature magnetic characteristic and ferromagnetic resonance properties. The alternate number of FeGa/Mn was kept constant, and the frequency of pulsed laser was increased (with decreasing the number of alternating layers) to assess the role of decreasing interfaces structure change in these magnetic heterostructures. Tuning the deposition frequency of Mn at 3 Hz, the film showed excellent soft magnetic property and the element ratio of Fe, Mn and Ga was close to 2:1:1, which was consistent with the Heusler alloy phase. When the Mn deposition frequency were 1 Hz and 5 Hz, the samples showed obvious FM/AFM mixing at low temperatures. The tenability of these magnetic multilayer films make them good candidates for RF magnetic applications with strong magnetoelastic coupling and shape memory character.
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