Abstract
The photoinduced valence dynamics of were investigated using time-resolved x-ray absorption spectroscopy for Eu edge. Through the pump-probe technique with synchrotron x-ray and Ti:sapphire laser pulses, a photoinduced valence transition was observed from to . Because the lifetime of a photoinduced state can be up to 3 ns, a metastable state is considered to be realized. By comparing the experimental results with the theoretical calculations, the photoinduced valence transition between Eu and conduction electrons was quantitatively evaluated.
- Received 10 May 2019
- Revised 30 July 2019
DOI:https://doi.org/10.1103/PhysRevB.100.115123
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