Dr. Eugenio Paris


Paul Scherrer Institute
Forschungsstrasse 111
5232 Villigen PSI


Since September 2020, Eugenio Paris is a beamline scientist at the Furka endstation of the Athos beamline at the SwissFEL. He obtained his M.Sc. and Ph.D. in Physics at the University of Rome “La Sapienza”, where he worked under the supervision of Prof. Naurang L. Saini. In his doctoral studies, he investigated the interplay between local lattice distortions and electronic properties of novel superconductors and other functional materials using various experimental techniques, including x-ray absorption (EXAFS, XANES) and angle-resolved photoemission (ARPES). In 2017, he joined the Paul Scherrer Institute as a postdoctoral researcher, where he focused on the study of elementary excitations in transition metal oxide materials, using Resonant Inelastic X-ray Scattering (RIXS) both in the static and ultrafast domains.   

Institutional Responsibilities

Eugenio Paris is responsible for the design and installation of the upcoming experimental station Furka (LAP) at the soft X-ray beamline Athos at SwissFEL.

Scientific Research

The scientific research of Eugenio Paris focuses on the investigation of novel phenomena arising from the collective interactions among electrons in solids and from the interplay between different degrees of freedom. His experimental approach consists of employing resonant spectroscopy and scattering techniques both in the static and ultrafast domains, to obtain energy-, momentum-, and time-resolved information. Specific topics in his research include the effect of local structural distortions in superconductors and high spin-orbit coupled oxides, as well as the prospect of using light pulses to manipulate the quantum states in complex materials.

Selected Publications

For an extensive overview we kindly refer you to our publication repository DORA (includes publications since joining PSI).

Strain engineering of the charge and spin-orbital interactions in Sr2IrO4E. Paris, Y. Tseng, E. M. Pärschke, W. Zhang, M. H. Upton , A. Efimenko, K. Rolfs, D. E. McNally, L. Maurel, M. Naamneh, M. Caputo, V. N. Strocov, Z. Wang, D. Casa, C. W. Schneider, E. Pomjakushina, K. Wohlfeld, M. Radovic, and T. Schmitt, Proceedings of the National Academy of Sciences 117, 24764 (2020).

Orbital dynamics during an ultrafast insulator to metal transition, S. Parchenko*, E. Paris*, D. E. McNally, E. Abreu, M. Dantz, E. M. Bothschafter, A. H. Reid, W. F. Schlotter, M.-F. Lin, S. F. Wandel, G. Coslovich, S. Zohar, G. L. Dakovski, J. J. Turner, S. Moeller, Y. Tseng, M. Radovic, C. Saathe, M. Agaaker, J. E. Nordgren, S. L. Johnson, T. Schmitt, and U. Staub, Physical Review Research 2, 023110 (2020) (* equally contributing).

High-pressure x-ray absorption and diffraction study of the self-doped superconductor EuFBiS2, E. Paris, B. Joseph, C. Marini, K. Terashima, T. Wakita, T. Yokoya, Y. Mizuguchi, T. Mizokawa and N. L. Saini,  Physical Review B 101, 214526 (2020).

Electronic structure of the parent compound of superconducting infinite-layer nickelates, M. Hepting, D. Li, C. J. Jia, H. Lu, E. Paris, Y. Tseng, X. Feng, M. Osada, E. Been, Y. Hikita, Y.-D. Chuang, Z. Hussain, K. J. Zhou, A. Nag, M. Garcia-Fernandez, M. Rossi, H. Y. Huang, D. J. Huang, Z. X. Shen, T. Schmitt, H. Y. Hwang, B. Moritz, J. Zaanen, T. P. Devereaux and W. S. Lee, Nature Materials 19, 381 (2020).

High-resolution resonant inelastic x-ray scattering study of the electron-phonon coupling in honeycomb α-Li2IrO3, J. G. Vale, C. D. Dashwood, E. Paris, L. S. I. Veiga, M. Garcia-Fernandez, A. Nag, A. Walters, Ke-Jin Zhou, I.-M. Pietsch, A. Jesche, P. Gegenwart, R. Coldea, T. Schmitt, D. F. McMorrow, Physical Review B 100, 224303 (2019).

The local structure of the Ca0.9Pr0.1Fe2As2 superconductor as a function of temperature, E. Paris, T. Wakita, L. Simonelli, C. Marini, W. Olszewski, K. Terashima, F. Stramaglia, G. M. Pugliese, T. Mizokawa, S. Ioka, K. Kudo, M. Nohara, T. Yokoya and N. L. Saini, Superconductor Science and Technology 32, 095001 (2019).

Strain-engineering Mott-insulating La2CuO4, O. Ivashko, M. Horio, W. Wan, N. B. Christensen, D. E. McNally, E. Paris, Y. Tseng, N.E. Shaik, H. M. Rønnow, H. I. Wei, C. Adamo, C. Lichtensteiger, M. Gibert, M. R. Beasley, K. M. Shen, J. M. Tomczak, T. Schmitt and J. Chang, Nature Communications 10, 786 (2019).

Suppression of structural instability in LaOBiS2-xSex by Se substitution, E. Paris, Y. Mizuguchi, T. Wakita, K. Terashima, T. Yokoya, T. Mizokawa and N. L. Saini, Journal of Physics: Condensed Matter 30, 455703 (2018).

Distinct local structure of superconducting Ca10M4As8(Fe2As2)5 (M = Pt, Ir), E. Paris, T. Wakita, O. Proux, T. Yokoya, K. Kudo, D. Mitsuoka, T. Kimura, K. Fujimura, N. Nishimoto, S. Ioka, M. Nohara, T. Mizokawa, and N. L. Saini, Physical Review B 96, 224507 (2017).

Role of the local structure in superconductivity of LaO0.5F0.5BiS2-xSex system, E. Paris, Y. Mizuguchi, M. Y. Hacisalihoglu, T. Hiroi, B. Joseph, G. Aquilanti, O. Miura, T. Mizokawa and N. L. Saini, Journal of Physics: Condensed Matter 29, 145603 (2017).

Electronic structure of self-doped layered Eu3F4Bi2S4 material revealed by x-ray absorption spectroscopy and photoelectron spectromicroscopy, E. Paris, T. Sugimoto, T. Wakita, A. Barinov, K. Terashima, V. Kandyba, O. Proux, J. Kajitani, R. Higashinaka, T. D. Matsuda, Y. Aoki, T. Yokoya, T. Mizokawa, and N. L. Saini, Physical Review B 95, 035152 (2017).

Temperature dependent local atomic displacements in ammonia intercalated iron selenide superconductor, E. Paris, L. Simonelli, T. Wakita, C. Marini, J.-H. Lee, W. Olszewski, K. Terashima, T. Kakuto, N. Nishimoto, T. Kimura, K. Kudo, T. Kambe, M. Nohara, T. Yokoya, and N. L. Saini, Scientific Reports 6, 27646 (2016).