Tuning static and dynamic magnetic properties of FeGa/Mn film

Tuning static and dynamic magnetic properties of FeGa/Mn film
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调节 FeGa/Mn 薄膜的静态和动态磁性能

DOI:
10.1016/j.jmmm.2019.01.045
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发表时间:
2019-05
影响因子:
2.7
通讯作者:
Shi Wangzhou
Shi Wangzhou
中科院分区:
材料科学3区
文献类型:
--
作者:
Zhang Yi;Huang Chaojuan;Duan Zhihua;Shi Wangzhou

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利用脉冲激光沉积系统在室温下在Si(0 0 1)衬底上制备了FeGa/Mn薄膜。研究了FeGa/Mn(Fe 80 Ga 20/Mn)薄膜的静态和动态磁性能,以调整其磁软度、磁化强度、低温磁特性和铁磁共振特性。FeGa/Mn的交替数量保持恒定,并且脉冲激光的频率增加(随着交替层的数量的减少)以评估减少这些磁性异质结构中的界面结构变化的作用。当Mn的沉积频率为3 Hz时,薄膜具有良好的软磁性能,Fe、Mn、Ga的元素比接近2:1:1,与Heusler合金相一致。当Mn沉积频率为1 Hz和5 Hz时,样品在低温下表现出明显的FM/AFM混合。这些磁性多层膜的可拉伸性使其成为具有强磁弹耦合和形状记忆特性的RF磁性应用的良好候选者。
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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