Abstract
Spin-resolved photoemission with synchrotron radiation has been used to study the electronic structure of submonolayer and monolayer coverages of rare earth metals on Fe(001). The highly spin polarized emission from the localized 4f levels of Gd, Tb and Dy on Fe(001) reveals the antiparallel coupling between these heavy rare earths and the Fe magnetic moment. Overlayers of the light rare earths Nd and Sm on Fe(001) exhibit a complex spin structure. Exchange split final state multiplet terms of the 4f spectra of the heavy rare earths are, for the first time, explicitly distinguished by observation of opposite polarization.
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