Abstract.
We show how the spectral structure of the magnetic circular dichroism (MCD) in photoemission (PE) can be analysed using a sum rule for the sublevel orbital moment. For itinerant 3d metals, such as Co, Fe and Ni, the MCD in the 2p PE does not agree with a single-particle model. On the other hand, a final-state impurity model calculation gives an excellent agreement with the experimental results for the Ni 2p PE of nickel metal. This indicates that inter-configurational mixing must be taken into account to understand the detailed MCD structure in metallic systems. Vice versa, MCD-PE can help to explain the complicated behavior of electrons in correlated materials.
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Received: 23 May 2001 / Accepted: 4 July 2001 / Published online: 5 October 2001
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van der Laan, G. How itinerant are 3d electrons in transition metals? A study of magnetic circular dichroism in 2p photoemission . Appl Phys A 73, 673–678 (2001). https://doi.org/10.1007/s003390100959
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DOI: https://doi.org/10.1007/s003390100959