Ultrafast x-ray diffraction
SPRINGER SERIES CHEM 79 (2005) 170-174
Abstract:
In the last few years the generation of femtosecond pulses in the X-ray regime has become possible. These ultrashort X-ray pulses have enabled femtosecond time-resolution to be extended to X-rays.Phase Transition in VO2 : Time-domain Assignment of Cause and Effect in Presence of Strong Correlations
Optics InfoBase Conference Papers (2004)
Abstract:
We establish a time-domain hierarchy between structural and electronic effects in the model strongly correlated system VO2. We find that the insulator-to-metal transition is driven directly by structural change rather than by electron-electron correlations.Structural bottleneck in the photo-induced insulator-to-metal transition in VO2
OSA Trends in Optics and Photonics Series 97 (2004) 287-288
Abstract:
The photo-induced insulator-to-metal transition in VO2, is measured with 15-fs, μJ pulses. Our measurements allow for the separation of structural and electronic effects in this heavily debated compound.Ultrafast Near Edge X-ray Absorption Measurement of the Insulator-to-metal Transition in VO2
Optics InfoBase Conference Papers (2004)
Abstract:
We measure the insulator-to-metal transition in VO2 using time-resolved Near-Edge X-ray Absorption. Picosecond pulses of synchrotron radiation are used to detect the red-shift in the Vanadium L3 edge at 516 eV, associated with bandgap collapse.Ultrafast soft X-ray absorption spectroscopy of the VO2 electronic phase transition
OSA Trends in Optics and Photonics Series 97 (2004) 153-154