SuperESCA beamline description

Pagina 7 di 7

CoSMoS end-station

The Combined Spectroscopy and Microscopy on Surfaces (CoSMoS) facility, belongs to the National Institute of Materials Physics (NIMP) in Magurele, Romania. CoSMoS is installed on the branch-line of the SuperESCA beamline, within a cooperation agreement between Elettra and NIMP. It is a single set-up from SPECS including:
(i) a photoemission chamber equipped with a 150 mm Phoibos electron energy analyzer with spin detection system and standard preparation tools and lab sources (sputter, flood gun, monochromatized Al Kα/Ag Lα (about 2.98 keV), high power UV-lamp, etc.). The sample is supported by a five-axis manipulator (x, y, z, θ, φ) with cooling capabilities down to 80 K and heating up to about 1300 K;
(ii) a variable temperature (80-600 K) SPECS Aarhus STM with sample cartridge with heating stage;
(iii) a MBE system equipped with the same manipulator of the photoemission chamber, LEED, RHEED, thickness monitor, RGA, 6 evaporation cells, and a RF discharge plasma source.

Different transfer arms allow moving samples between the three chambers and a fast-entry-lock is used for inserting samples in UHV from air in a few minutes. About 10-12 samples can be accommodated on different storage facilities of the whole setup, which means that all these samples might be prepared and characterized well in advance and ready for the synchrotron radiation measurements. Once fully operating the CoSMoS facility will be made available also to external users. It will feature the rare requisite to combine synchrotron-based photoemission techniques with STM and an MBE deposition system, all the preparation and measurement operations being performed in situ.

Ultima modifica il Venerdì, 31 Marzo 2017 13:54