FisMat2017 - Submission - View

Abstract's title: Spin Polarization Research Infrastructure in the Nanoscale and Time domains
Submitting author: Giorgio Rossi
Affiliation: Dipartimento di Fisica, Università di Milano e IOM-CNR, Trieste
Affiliation Address: via Celoria 16, 20144 Milano Area Science Park Basovizza, 34149 Trieste
Country: Italy
Oral presentation/Poster (Author's request): Oral presentation
Other authors and affiliations: Tommaso Pincelli, Dipartimento di Fisica dell'Università di Milano Riccardo Cucini, IOM-CNR Andrea Fondacaro, IOM_CNR Giancarlo Panaccione, IOM-CNR
Abstract

Time resolved photoemission experiments need pulsed sources of suitable photon energy and time structure in order to probe the perturbative regime (100-200 fs pulses at high repetition rates > 50 KHz, peak intensities of 10E8 photons/pulse from advanced HHG sources), the non-linear regime (ultra-short (10-100 fs) / ultra-intense (10E12 photons) pulses from FEL sources, low repetition rate 10Hz-1KHz), and the intermediate regime.   The NFFA-SPRINT (Spin Polarization Research Instrument in the Nanoscale and Time laboratory; http://trieste.nffa.eu/areas/spectroscopy/sprint-laboratory/) provides a novel HHG gas source of pulsed UV/soft-X ray source with pulses of 150-300 fs and repetition rate in the 100KHz range, currently operational up to 6 eV and under commissioning for the Soft-X part, coupled to a UHV spectrometer chamber equipped with ARPES and Spin Polarization vectorial analysis.  Time integrated as well as time resolved, including single shot, magnetometry and spectroscopy are implemented.  Samples are prepared in surface-science environment and hosted in advanced sample environment (cryostat, H and E applied field) as well as UHV transferred from PLD and MBE laboratories of the NFFA ensemble.  Preliminary research results and performances of the apparatuses are presented. The NFFA-SPRINT will operate as user facility by the end of 2017.