Laboratoire de Physique des Matériaux et des Surfaces CY Cergy Paris University Rue d'Eragny, Neuville sur Oise 95 031 Cergy-Pontoise directeur: Karol Hricovini LPMS is associated with LIDYL and ATTOLab laboratories and attached to the Department of Physics at the CY Cergy Paris University Ph.D students are attached to the Science and Engineering Doctoral School .   LPMS is an expert surface science laboratory focusing on the electronic spin structure by ARPES and spin-resolved ARPES that is one of the most direct methods of studying the electronic structure of solids. LPMS has recently acquired a photoelectron spectroscopy set-up, "TOF-Spin", funded by two "Investissement d'Avenir" (PATRIMEX and ATTOLab). The spectrometer is fitted with hemispherical and TOF electron analysers (SPECS), Ferrum VLEED spin detector (FOCUS), high flux UV lamp and X-ray sourcet. Presently studied materials are magnetic thin oxide films, half-metallic systems, doped transition metal oxide perovskites for photovoltaics, topological insulators - Dirac materials, parent compounds of topological insulators and the 2D materials TMDC (transition-metal dichalcogenide). In the time and spin resolved domain the LPMS team obtained a significant result when studying the electron spin dynamics in the topological insulator Bi2Se3. Taking Fe3O4 as archetype system of half-metallic systems the team succeeded to provide a new method for the identification of bulk half-metallicity based on time and spin-resolution. The ultrafast spin dynamics imaging of WTe2 with femto (atto)-second time resolution using HHG laser-induced ARPES at ATTOLab provides a first proof of feasibility of such a demanding experiment on a Weyl metal. The successful work is possible thanks to strong collaborations with theorists (Jan Minar from NTC, University of West Bohemia, Pilzen, Czech Republic and Marco Battiato, from Nanyang Technological University, Singapore) and experimental specialists (Cephise Cacho, from Diamond synchrotron facility, Neil Wilson and James Lloyd-Hughes from Warwick University) with whom we share several PhD students.