A simple variational argument is presented which indicates that the spin-orbit coupling in itinerant systems can be enhanced by strong electronic correlations. The importance of the enhancement in the formation of the giant magnetic anisotropy found in the paramagnetic state of metallic compounds containing transition metal and light actinide elements, such as the cubic uranium monochalcogenides and tetragonal URu$_2$Si$_2$, is discussed.

中文翻译：

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过渡金属化合物和轻锕系金属化合物中强电子相关性增强自旋轨道耦合


提出了一个简单的变分论证，表明强电子相关性可以增强流动系统中的自旋轨道耦合。讨论了在含有过渡金属和轻锕系元素的金属化合物（例如立方铀单硫族化物和四方 URu$_2$Si$_2$）顺磁态中发现的巨磁各向异性形成增强的重要性。