PHARAO
X-ray diffraction during MBE
The PHARAO experiment combines molecular beam epitaxy (MBE) with the option to monitor crystal growth and related phenomena at interfaces and surfaces under ultra high vacuum conditions in-situ by high-resolution x-ray diffraction. Therefore, our growth chamber is equipped with cylindrical, x-ray transparent Be-windows for the incident and diffracted x-rays. Recently PHARAO hosts a highly specialized chamber for the growth of oxide materials to pioneer crystal growth and growth related phenomena of new materials (as e.g. two-dimensional van der Waals systems) using in-situ capabilities.
Selected Applications:- study of surface and interface phenomena during crystal growth via molecular beam epitaxy
- strain induced phase formation and stabilization
- crystal lattice dynamics upon thermal annealing under UHV conditions
Methods
Remote access
not possible
| Beamline data | |
|---|---|
| Energy range | 6 - 12 keV |
| Energy resolution | 1500 |
| Flux | 109 cps |
| Polarisation | horizontal |
| Focus size (hor. x vert.) | 0.5 mm x 0.5 mm |
| Phone | -- |
| More details | U125-2_KMC |
| Station data | |
| Temperature range | 280 - 1273 K |
| Pressure range | UHV |
| Detector | Dectris 300k |
| Manipulators | -- |
| Sample holder compatibility | -- |
| Additional equipment | |
The PHARAO experiment operates as a collaborating research group (CRG) beamline and is maintained by the Paul-Drude-Institut (PDI) für Festkörperelektronik Berlin, Institut der Leibniz-Gemeinschaft.
For details and current status of the experimental station please contact Michael Hanke hanke@pdi-berlin.de.