Sum rules for magnetic dichroism in rare earth 4f photoemission.
Sum rules for magnetic dichroism in rare earth 4f photoemission.
复制标题
稀土 4f 光电子发射中磁二色性的求和规则。
DOI：
10.1103/physrevlett.70.2499
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发表时间：
1993
影响因子：
8.6
通讯作者：
van der Laan G
中科院分区：
文献类型：
--
作者：
Thole;van der Laan G
我们提出了部分填充壳层自旋极化光发射中磁二色性的新求和规则，给出了轨道和自旋磁矩的期望值以及它们在基态的相关性。我们将此应用于稀土的4f光发射，其中极化效应比3d过渡金属大2个数量级。4f电子产率的强烈二色性为磁性稀土表面和薄膜的表征开辟了新的视角。
We present new sum rules for magnetic dichroism in spin polarized photoemission from partly filled shells which give the expectation values of the orbital and spin magnetic moments and their correlations in the ground state. We apply this to the 4f photoemission of rare earths, where the polarization effects are 2 orders of magnitude larger than in 3d transition metals. The very strong dichroism in the 4f electron yield opens new perspectives for the characterization of magnetic rare earth surfaces and thin films.