通过钯单层覆盖调控钴薄膜的自旋重取向转变
Tailoring the Spin Reorientation Transition of Co Films by Pd Monolayer Capping.
作者信息
Santos Burgos Benito, López-Martín Raúl, De Toro José A, Binns Chris, Schmid Andreas K, de la Figuera Juan
机构信息
Instituto Regional de Investigación Científica Aplicada (IRICA) and Departamento de Física Aplicada, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain.
Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
出版信息
Nanomaterials (Basel). 2024 Oct 16;14(20):1662. doi: 10.3390/nano14201662.
We have characterized the magnetization easy-axis of ultra-thin Co films (2-5 atomic layers, AL) grown on Ru(0001) when they are capped with a monolayer of Pd. The addition of a Pd monolayer turns the magnetization of 3 and 4 AL-thick Co films from an in-plane to an out-of-plane alignment, but not that of a 5 AL-thick film. These observations are explained in terms of an enhancement of the surface anisotropy. The exposure of the sample to hydrogen, CO or a combination of both gases does not overcome this effect.
我们已经对生长在Ru(0001)上、顶部覆盖有单层钯的超薄钴膜（2 - 5个原子层，AL）的易磁化轴进行了表征。添加单层钯会使3个和4个原子层厚的钴膜的磁化方向从面内取向转变为面外取向，但5个原子层厚的钴膜则不会。这些观察结果可以用表面各向异性的增强来解释。将样品暴露于氢气、一氧化碳或这两种气体的组合中并不能克服这种效应。
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