Synchronizing fast electrically driven phenomena with synchrotron x-ray probes.
Time scales of long-range physical processes in solids are typically in the range of picoseconds to nanoseconds. These times are commensurate with the time resolution of structural probes based on modern synchrotron x-ray sources. Several processes of technological and scientific interest can be driven by applied electric fields, but synchronizing electrically driven phenomena with an x-ray probe poses a technical challenge. We describe the synchronization of a well-defined number of fast electrical pulses with the time structure of synchrotron x rays to probe the dynamics of thin films and nanostructures. This synchronization technique yields x-ray transient signals with 600 ps transitions in ferroelectric thin films, with a contribution of approximately 320 ps due to timing jitter in the synchronization.
Grigoriev
Alexei
A
Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA. alexey@cae.wisc.edu
Do
Dal-Hyun
DH
Evans
Paul G
PG
Adams
Bernhard
B
Landahl
Eric
E
Dufresne
Eric M
EM