Paris-Saclay University


My research is on the electronic structure of quantum materials, in particular on their ultrafast dynamics and non-equilibrium properties.


  • Topological Insulators
  • Dirac and Weyl materials
  • Strongly correlated systems
  • Superconductors

Experimental Methods

  • Ultrafast lasers
  • Photoelectron spectroscopy (ARPES)

Light Matter Interaction

Quantum and Electronic Materials

Ultrafast Spectroscopy

Out-of-equilibrium dynamics on the fs time scale

Micro – ARPES

Laser based, time-resolved ARPES with micron lateral resolution

FEL and synchrotron activities

Experiments at various large scale facilities worldwide (SOLEIL, ELETTRA, ESRF, LCLS…)

Zhang, J., Chen, Z., Papalazarou, E., Marsi, M., Omoumi, A., & Caillaux, J. (2022). Spin and orbital texture of quantum materials from dichroism in the ultrafast photoemission yield. In V. Yakovlev & S. Haacke (Eds.), Advances in Ultrafast Condensed Phase Physics III (p. 17). SPIE.
Cherasse, M., Dong, J., Trippé-Allard, G., Deleporte, E., Garrot, D., Maehrlein, S. F., Wolf, M., Chen, Z., Papalazarou, E., Marsi, M., Rueff, J.-P., Taleb-Ibrahimi, A., & Perfetti, L. (2022). Electron Dynamics in Hybrid Perovskites Reveal the Role of Organic Cations on the Screening of Local Charges. Nano Letters, 22(5), 2065–2069.
Balédent, V., Cerqueira, T. T. F., Sarmiento-Pérez, R., Shukla, A., Bellin, C., Marsi, M., Itié, J.-P., Gatti, M., Marques, M. A. L., Botti, S., & Rueff, J.-P. (2018). High-pressure phases of VO 2 from the combination of Raman scattering and ab initio structural search. Physical Review B, 97(2), 024107.
Chen, Z., Dong, J., Papalazarou, E., Marsi, M., Giorgetti, C., Zhang, Z., Tian, B., Rueff, J.-P., Taleb-Ibrahimi, A., & Perfetti, L. (2019). Band Gap Renormalization, Carrier Multiplication, and Stark Broadening in Photoexcited Black Phosphorus. Nano Letters, 19(1), 488–493.
Chen, Z., Dong, J., Giorgetti, C., Papalazarou, E., Marsi, M., Zhang, Z., Tian, B., Ma, Q., Cheng, Y., Rueff, J.-P., Taleb-Ibrahimi, A., & Perfetti, L. (2020). Spectroscopy of buried states in black phosphorus with surface doping. 2D Materials, 7(3), 035027.
Chen, Z., Caillaux, J., Zhang, J., Papalazarou, E., Dong, J., Rueff, J.-P., Taleb-Ibrahimi, A., Perfetti, L., & Marsi, M. (2021). Ultrafast dynamics with time-resolved ARPES: photoexcited electrons in monochalcogenide semiconductors. Comptes Rendus. Physique, 22(S2), 103–110.
Zhang, J., Caillaux, J., Chen, Z., Konczykowski, M., Hruban, A., Wołoś, A., Materna, A., Perfetti, L., Papalazarou, E., & Marsi, M. (2021). Probing spin chirality of photoexcited topological insulators with circular dichroism: multi-dimensional time-resolved ARPES on Bi 2 Te 2 Se and Bi 2 Se 3. Journal of Electron Spectroscopy and Related Phenomena, 253, 147125.
Nilforoushan, N., Casula, M., Amaricci, A., Caputo, M., Caillaux, J., Khalil, L., Papalazarou, E., Simon, P., Perfetti, L., Vobornik, I., Das, P. K., Fujii, J., Barinov, A., Santos-Cottin, D., Klein, Y., Fabrizio, M., Gauzzi, A., & Marsi, M. (2021). Moving Dirac nodes by chemical substitution. Proceedings of the National Academy of Sciences, 118(33), e2108617118.
Perfetti, L., Faure, J., Papalazarou, E., Mauchain, J., Marsi, M., Goerbig, M. O., Taleb-Ibrahimi, A., & Ohtsubo, Y. (2015). New aspects of electronic excitations at the bismuth surface: Topology, thermalization and coupling to coherent phonons. Journal of Electron Spectroscopy and Related Phenomena, 201, 60–65.
Nilforoushan, N., Casula, M., Caputo, M., Papalazarou, E., Caillaux, J., Chen, Z., Perfetti, L., Amaricci, A., Santos-Cottin, D., Klein, Y., Gauzzi, A., & Marsi, M. (2020). Photoinduced renormalization and electronic screening of quasi-two-dimensional Dirac states in BaNiS 2. Physical Review Research, 2(4), 043397.
Hajlaoui, M., Papalazarou, E., Mauchain, J., Perfetti, L., Taleb-Ibrahimi, A., Navarin, F., Monteverde, M., Auban-Senzier, P., Pasquier, C. R., Moisan, N., Boschetto, D., Neupane, M., Hasan, M. Z., Durakiewicz, T., Jiang, Z., Xu, Y., Miotkowski, I., Chen, Y. P., Jia, S., … Marsi, M. (2014). Tuning a Schottky barrier in a photoexcited topological insulator with transient Dirac cone electron-hole asymmetry. Nature Communications, 5(1), 3003.
Chen, Z., Sjakste, J., Dong, J., Taleb-Ibrahimi, A., Rueff, J.-P., Shukla, A., Peretti, J., Papalazarou, E., Marsi, M., & Perfetti, L. (2020). Ultrafast dynamics of hot carriers in a quasi–two-dimensional electron gas on InSe. Proceedings of the National Academy of Sciences, 117(36), 21962–21967.
Lantz, G., Mansart, B., Grieger, D., Boschetto, D., Nilforoushan, N., Papalazarou, E., Moisan, N., Perfetti, L., Jacques, V. L. R., Le Bolloc’h, D., Laulhé, C., Ravy, S., Rueff, J.-P., Glover, T. E., Hertlein, M. P., Hussain, Z., Song, S., Chollet, M., Fabrizio, M., & Marsi, M. (2017). Ultrafast evolution and transient phases of a prototype out-of-equilibrium Mott–Hubbard material. Nature Communications, 8, 13917.
Tisserond, É., Nilforoushan, N., Caputo, M., Alemany, P., Canadell, E., Khalil, L., Vobornik, I., Fujii, J., Das, P. K., Mézière, C., Batail, P., Pouget, J.-P., Pasquier, C., Marsi, M., & Monteverde, M. (2019). Electronic structure of the α-(BEDT-TTF)2I3 surface by photoelectron spectroscopy. The European Physical Journal B, 92(4), 70.
Nilforoushan, N. (2018). Dynamique hors équilibre dans les sémimétaux de Dirac et les matériaux fortement corrélés. Université Paris-Saclay.
Marsi, M. (2018). Ultrafast Electron Dynamics in Topological Materials. Physica Status Solidi (RRL) - Rapid Research Letters, 12(11), 1800228.
Chen, Z., Giorgetti, C., Sjakste, J., Cabouat, R., Véniard, V., Zhang, Z., Taleb-Ibrahimi, A., Papalazarou, E., Marsi, M., Shukla, A., Peretti, J., & Perfetti, L. (2018). Ultrafast electron dynamics reveal the high potential of InSe for hot-carrier optoelectronics. Physical Review B, 97(24), 241201.
Khalil, L. (2018). Etude ultra-rapide des fermions de Dirac dans les isolants topologiques [TH]. Paris Saclay.
Lo Vecchio, I., Baldassarre, L., Di Pietro, P., Giorgianni, F., Marsi, M., Perucchi, A., Schade, U., Lanzara, A., & Lupi, S. (2017). Orbital dependent coherence temperature and optical anisotropy of V 2 O 3 quasiparticles. Journal of Physics: Condensed Matter, 29(34), 345602.
Mauchain, J., Ohtsubo, Y., Hajlaoui, M., Papalazarou, E., Marsi, M., Taleb-Ibrahimi, A., Faure, J., Kokh, K. A., Tereshchenko, O. E., Eremeev, S. V., Chulkov, E. V., & Perfetti, L. (2013). Circular Dichroism and Superdiffusive Transport at the Surface of BiTeI. Physical Review Letters, 111(12), 126603.
Faure, J., Mauchain, J., Papalazarou, E., Marsi, M., Boschetto, D., Timrov, I., Vast, N., Ohtsubo, Y., Arnaud, B., & Perfetti, L. (2013). Direct observation of electron thermalization and electron-phonon coupling in photoexcited bismuth. Physical Review B, 88(7), 075120.
Caputo, M., Khalil, L., Papalazarou, E., Nilforoushan, N., Perfetti, L., Taleb-Ibrahimi, A., Gibson, Q. D., Cava, R. J., & Marsi, M. (2018). Dynamics of out-of-equilibrium electron and hole pockets in the type-II Weyl semimetal candidate WTe 2. Physical Review B, 97(11), 115115.
Khalil, L., Papalazarou, E., Caputo, M., Nilforoushan, N., Perfetti, L., Taleb-Ibrahimi, A., Kandyba, V., Barinov, A., Gibson, Q. D., Cava, R. J., & Marsi, M. (2017). Electronic band structure for occupied and unoccupied states of the natural topological superlattice phase Sb 2 Te. Physical Review B, 95(8), 085118.
Zhang, Z., Piovera, C., Papalazarou, E., Marsi, M., d’Astuto, M., van der Beek, C. J., Taleb-Ibrahimi, A., & Perfetti, L. (2017). Photoinduced filling of near-nodal gap in Bi 2 Sr 2 CaCu 2 O 8 + δ. Physical Review B, 96(6), 064510.
Lo Vecchio, I., Baldassarre, L., D’Apuzzo, F., Limaj, O., Nicoletti, D., Perucchi, A., Fan, L., Metcalf, P., Marsi, M., & Lupi, S. (2015). Optical properties of V 2 O 3 in its whole phase diagram. Physical Review B, 91(15), 155133.
Bencivenga, F., Principi, E., Giangrisostomi, E., Cucini, R., Battistoni, A., D’Amico, F., Di Cicco, A., Di Fonzo, S., Filipponi, A., Gessini, A., Gunnella, R., Marsi, M., Properzi, L., Saito, M., & Masciovecchio, C. (2014). Reflectivity enhancement in titanium by ultrafast XUV irradiation. Scientific Reports, 4, 4952.
Chen, Z., Lee, M., Zhang, Z., Diab, H., Garrot, D., Lédée, F., Fertey, P., Papalazarou, E., Marsi, M., Ponseca, C., Deleporte, E., Tejeda, A., & Perfetti, L. (2017). Time-resolved photoemission spectroscopy of electronic cooling and localization in CH 3 NH 3 PbI 3 crystals. Physical Review Materials, 1(4), 045402.
Piovera, C., Brouet, V., Papalazarou, E., Caputo, M., Marsi, M., Taleb-Ibrahimi, A., Kim, B. J., & Perfetti, L. (2016). Time-resolved photoemission of Sr 2 IrO 4. Physical Review B, 93(24), 241114.
Brouet, V., Mauchain, J., Papalazarou, E., Faure, J., Marsi, M., Lin, P., Taleb-Ibrahimi, A., Le Fèvre, P., Bertran, F., Cario, L., Janod, E., Corraze, B., Ta Phuoc, V., & Perfetti, L. (2013). Ultrafast filling of an electronic pseudogap in an incommensurate crystal. Physical Review B, 87(4), 041106.
Papalazarou, E., Faure, J., Mauchain, J., Marsi, M., Taleb-Ibrahimi, A., Reshetnyak, I., Van Roekeghem, A., Timrov, I., Vast, N., Arnaud, B., & Perfetti, L. (2012). Coherent phonon coupling to individual Bloch states in photoexcited bismuth. Phys. Rev. Lett., 108, 256808.
D’Amico, F., Saito, M., Bencivenga, F., Marsi, M., Gessini, A., Camisasca, G., Principi, E., Cucini, R., Di Fonzo, S., Battistoni, A., Giangrisostomi, E., & Masciovecchio, C. (2013). UV resonant Raman scattering facility at Elettra. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 703, 33–37.
Rodolakis, F., Mansart, B., Papalazarou, E., Gorovikov, S., Vilmercati, P., Petaccia, L., Goldoni, A., Rueff, J.-P., Lupi, S., Metcalf, P., & Marsi, M. (2009). In a correlated metal, quasiparticles are not superficial at all. ELETTRA Highlights 2009, 58–59.
Rodolakis, F., Mansart, B., Papalazarou, E., Gorovikov, S., Vilmercati, P., Petaccia, L., Goldoni, A., Rueff, J.-P., Lupi, S., Metcalf, P., & Marsi, M. (2009). Quasiparticles at the Mott Transition in V2O3: Wave Vector Dependence and Surface Attenuation. Phys. Rev. Lett., 102, 066805.
Mansart, B., Brouet, V., Papalazarou, E., Fuglsang, J., Petaccia, L., Gorovikov, S., Grum-Grzhimailo, A. N., Rullier-Albenque, F., Forget, A., & Marsi, M. (2011). Orbital character of hole-like Fermi surface in superconducting Ba(Fe1-xCox)2As2. Phys. Rev. B: Condens. Matter, 83, 064516.
Mansart, B., Papalazarou, E., Fuglsang, J., M., Brouet, V., Petaccia, L., de’Medici, L., Sangiovanni, G., Rullier-Albenque, F., Forget, A., Colson, D., & Marsi, M. (2012). Opening of the superconducting gap in the hole pockets of Ba(Fe1-xCox)(2)As-2 as seen via angle-resolved photoelectron spectroscopy. Phys. Rev. B: Condens. Matter, 85, 144508.
Ohtsubo, Y., Mauchain, J., Faure, J., Papalazarou, E., Marsi, M., Le Fevre, P., Bertran, F., Taleb-Ibrahimi, A., & Perfetti, L. (2012). Giant Anisotropy of Spin-Orbit Splitting at the Bismuth Surface. Phys. Rev. Lett., 109, 226404.
Brouet, V., Marsi, M., Mansart, B., Nicolaou, A., Taleb-Ibrahimi, A., Lefèvre, P., Bertran, F., Rullier-Albenque, F., Forget, A., & Colson, D. (2009). Nesting between hole and electron pockets in Ba(Fe1?xCox)2As2 (x=0–0.3) observed with angle-resolved photoemission. Phys. Rev. B: Condens. Matter, 80, 165115.
Hajlaoui, M., Papalazarou, E., Mauchain, J., Jiang, Z., Miotkowski, I., Chen, Y. P., Taleb-Ibrahimi, A., Perfetti, L., & Marsi, M. (2013). Time resolved ultrafast ARPES for the study of topological insulators: The case of Bi2Te3. The European Physical Journal Special Topics, 222(5), 1271–1275.
Santos-Cottin, D., Casula, M., Lantz, G., Klein, Y., Petaccia, L., Le Fèvre, P., Bertran, F., Papalazarou, E., Marsi, M., & Gauzzi, A. (2016). Rashba coupling amplification by a staggered crystal field. Nature Communications, 7, 11258.
Caputo, M., Panighel, M., Lisi, S., Khalil, L., Santo, G. D., Papalazarou, E., Hruban, A., Konczykowski, M., Krusin-Elbaum, L., Aliev, Z. S., Babanly, M. B., Otrokov, M. M., Politano, A., Chulkov, E. V., Arnau, A., Marinova, V., Das, P. K., Fujii, J., Vobornik, I., … Marsi, M. (2016). Manipulating the Topological Interface by Molecular Adsorbates: Adsorption of Co-Phthalocyanine on Bi 2 Se 3. Nano Letters, 16(6), 3409–3414.
Marsi, M. (2017, January 11). Ultrafast study of out-of-equilibrium Dirac fermions in topological matter. International Workshop on Multifunctional Dirac Materials, Orsay, France.
Marsi, M. (2017, January 10). Ultrafast study of out-of-equilibrium quantum materials. International School MCTDH: “Quantum dynamics with Multi-Configuration Time-Dependent Hartree methods,” Orsay, France.
Marsi, M. (2017, January 10). Ultrafast response of an archetype out-of-equilibrium Mott material. Intnl Conference on Cutting Edge Topics in Quantum Materials (ParisEdge 2017), Paris, France.
Marsi, M. (2017, January 25). Ultrafast evolution of the prototype out-of-equilibrium Mott-Hubbard material V2O3. TPES 2017 - Workshop on « Time-resolved Photoelectron Spectroscopy from tabletop UV and HHG laser sources,?Synchrotrons and FELs: experiments and challenges », Trieste, Italy.
Marsi, M. (2016, January 11). Out-of-equilibrium strongly correlated materials. Workshop on electron and spin dynamics in correlated systems, Cergy, France.
Marsi, M. (2016, January 10). Out of equilibrium Dirac fermions in topological insulators. International Workshop on « Topological Materials and Phases », Lyon, France.
Marsi, M. (2016, January 8). Ultrafast electron dynamics in complex materials. International Research School IMPACT 2016, Cargèse, France.
Marsi, M. (2016, January 5). Ultrafast dynamics in out of equilibrium complex materials. Ultrafast Dynamics workshop of VUVX 2016 International Conference (VUVX 2016), Szeged, Hungary.
Marsi, M. (2016, January 5). Ultrafast electron dynamics : from topological matter to correlated compounds. GDR Meeticc Workshop, Aussois, France.


Full Professor

Université Paris-Saclay

2005 – Present Orsay, France – Laboratoire de Physique des Solides in Orsay.

Ultrafast dynamics in quantum materials.          

Research Scientist

Elettra Sincrotrone Trieste

1995 – 2005 Trieste, Italy

Spectromicroscopy, Free Electron Laser


Ecole Polytechnique Fédérale Lausanne

1992-1995 Lausanne, Switzerland