论文标题
磁和化学吸附之间的合作与竞争
Cooperation and competition between magnetism and chemisorption
论文作者
论文摘要
在Newns-Anderson-Grimley模型中讨论了铁磁和非磁性表面上的化学吸附以及铁磁性模型。在铁磁表面的情况下，通过表面磁矩的变化来制定吸附能。使用这样的公式，我们解决了吸附物的结合强度如何取决于表面的磁矩以及吸附过程如何减少/增强表面磁矩的方式。我们的结果表明，用表面磁矩的术语可能具有吸附能量缩放关系。在非磁性表面的情况下，我们制定了修改的石匠标准，并讨论了由于在原本非磁性表面上化学吸附引起的磁性出现条件。
Chemisorption on ferromagnetic and non-magnetic surfaces is discussed within the Newns-Anderson-Grimley model along with the Stoner model of ferromagnetism. In the case of ferromagnetic surfaces, the adsorption energy is formulated in terms of the change in surface magnetic moments. Using such a formulation, we address the issue of how an adsorbate's binding strength depends on the magnetic moments of the surface and how the adsorption process reduces/enhances the magnetic moments of the surface. Our results indicates a possible adsorption energy scaling relationship in terms surface magnetic moments. In the case of non-magnetic surfaces, we formulate a modified stoner criterion and discuss the condition for the appearance of magnetism due to chemisorption on an otherwise non-magnetic surface.
