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Bilder aus der Forschung des PGI-1/IAS-1

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Fermi surface of iron
A cut in the Fermi surface of iron measured in PGI-6 by angle-resolved photoemission spectroscopy (ARPES) is compared to the results of a GW calculation. The GW approximation includes renormalization effects due to electron-electron scattering. The experimental results were measured using a photon energy of 70 eV. Whereas the main parts of the figures show results of 40 monolayers (ML) of iron, the insets highlighted in red correspond to 20 ML. In all cases, quantum-well states due to quantum confinement are observed, which are very well reproduced by our GW calculation.

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