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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Effects of deposition temperature and elemental layer thickness on the properties of Fe/Co multilayers grown by molecular beam epitaxy
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Effects of deposition temperature and elemental layer thickness on the properties of Fe/Co multilayers grown by molecular beam epitaxy

机译：沉积温度和元素层厚度对分子束外延生长Fe / Co多层膜性能的影响

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摘要

Fe/Co multilayers were grown at different temperatures up to 200 °C onto MgO-(1 00) monocrystalline substrates, varying both the Co and Fe elemental layer thicknesses. All samples show a multilayered structure where the elemental layers are separated by a thin interfacial region which, for high-temperature growths, is constituted by an equiatomic FeCo compound. The multilayers grown at room temperature show an in-plane uniaxial magnetic anisotropy. The increase in the growing temperature determines an improvement of the sample smoothness and the appearance of two preferred in-plane orientations of the easy magnetization axis having different strengths. By increasing the Co layer thickness, the in-plane magnetic behaviour becomes isotropic, while by increasing the Fe layer thickness, an out-of-plane contribution to the magnetization vector is established, which is responsible for the appearance of a well-defined magnetic morphology constituted by stripe-like domains.
机译：Fe / Co多层膜在高达200°C的不同温度下生长到MgO-（1 00）单晶衬底上，从而改变了Co和Fe元素层的厚度。所有样品均显示出多层结构，其中元素层被薄的界面区域隔开，对于高温生长，该界面区域由等原子的FeCo化合物构成。在室温下生长的多层表现出面内单轴磁各向异性。生长温度的升高决定了样品光滑度的提高以及具有不同强度的易磁化轴的两个优选的面内取向的出现。通过增加Co层的厚度，面内磁行为变为各向同性，而通过增加Fe层的厚度，建立了对磁化矢量的面外贡献，这导致了定义明确的磁性的出现。由条状结构域构成的形态。

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