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X-ray absorption (XAS) and resonant photoemission (RESPE) have been used to study Eu valence in ultra-thin EuF 3 layers grown by MBE. It was shown that resonant photoemission (RESPE) from EuF 3 ultra-thin layers exhibits different features for photon energies close to the 4d–4f threshold (130–150eV) and the 3d–4f excitation region (1120–1170eV). For the low energy resonance a clear...
Resonant photoemission was used to investigate the EuF 3 ultrathin layer for the photon energies within the Eu 4d→4f excitation region. Photoemission from the valence band in resonance showed the lines which can be attributed to two Eu valence states (Eu +3 and Eu +2 ) whereas the off resonance spectra of EuF 3 ultrathin layer do not exhibit divalent states of Eu. An...
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