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Local electronic structure of Fe$^{2+}$ impurities in MgO thin films: Temperature-dependent soft x-ray absorption spectroscopy study
Local electronic structure of Fe$^{2+}$ impurities Temperature-dependent soft x-ray absorption spectroscopy study
2010/11/18
We report on the local electronic structure of Fe impurities in MgO thin films. Using soft x-ray absorption spectroscopy (XAS) we verified that the Fe impurities are all in the 2+ valence state.The fi...
The importance of inter-site coherences in the x-ray absorption spectra of mixed-valent systems
inter-site coherences in the x-ray mixed-valent systems
2010/11/19
We study the importance of inter-site coherences and quantum interference effects in
the x-ray absorption spectroscopy (XAS) of mixed-valent systems. We demonstrate its importance,
first for a simpl...