Vankó, György research

  •  High-resolution X-ray spectroscopy
  • Electronic bistability
  • Ultrafast studies

High-resolution X-ray spectroscopy

  • Overview of the techniques or what can you do with a crystal spectrometer at a synchrotron radiation source? The answer includes non-resonant inelastic X-ray scattering (NR-IXS), a photon energy loss spectroscopy with controlled momentum transfer, resonant inelastic X-ray scattering (RIXS), X-ray emission spectroscopy (XES), X-ray absorption spectroscopy (XAS), and resonant X-ray emission spectroscopy (RXES) Quite a bit;)


           Improved resolution

           Interference between the absorption and emission channels in 1s2p RXES

           Non-local (or off-site) transitions in the pre-edge region


Electronic bistability

  • Spin-state transitions in transition metal complexes
  • Metal-insulator transitions in transition metal oxides


Ultrafast studies

  • Femtosecond-resolved spectroscopies to study the photophysics and photochemistry of molecular systems in solutions
  • Application of X-ray spectroscopy probes in pump-probe experiments