Laboratoire de chimie physique-matière et rayonnement | LCPMR

• Pré-publication, Document de travail

High-resolution electron-multi-ion coincidence set-up for gas-phase experiments in the tender and hard X-ray range

Edwin Kukk, Regis Vacheresse, Iyas Ismail, Tatiana Marchenko, Renaud Guillemin, Maria Novella Piancastelli, Marc Simon, Oksana Travnikova

The MUSTACHE setup (MUlti-STep photofragmentation studies by Auger electron - ion Coincidences using High Energy photons) is a high-resolution electron-multi-ion coincidence system optimized for gas-phase experiments in the tender (~2-10 keV) and hard (>5 keV) X-ray range. The system…

2025. ⟨hal-04980133⟩

• Article dans une revue

Neutral Sulfur Atom Formation in Decay of Deep Core Holes in SF6

Oksana Travnikova, Florian Trinter, Marcus Agåker, Giorgio Visentin, Joakim Andersson, Ludvig Kjellsson, Iyas Ismail, Nicolas Velasquez, Dimitris Koulentianos, Manuel Harder, Zhong Yin, Johan Söderström, Tatiana Marchenko, Renaud Guillemin, O. Dennis Mcginnis, Hans Ågren, Stephan Fritzsche, Marc Simon, Jan-Erik Rubensson, Joseph Nordgren

Dissociation upon sulfur K-shell excitation or ionization of SF 6 is studied by sulfur L-shell emission spectroscopy using synchrotron radiation and multiconfiguration Dirac-Hartree-Fock calculations of emission energies and transition rates. The decay path involves in particular Auger emission…

Physical Review Letters, 2025, 134 (6), pp.063003. ⟨10.1103/physrevlett.134.063003⟩. ⟨hal-04963502⟩

• Article dans une revue

Generation of electronically unsaturated carbon sites on carbon materials and study of their magnetic and chemical properties

Mathieu Vidal, Maryam Dehaghani, Javier Navarro-Ruiz, Takeharu Yoshii, Keigo Wakabayashi, Hirotomo Nishihara, Mathias Barreau, Fabrice Bournel, Jérôme Volkman, Guillaume Clet, Spirydon Zafeiratos, Nolwenn Le Breton, Pascal Puech, Iann Gerber, Athanassios Boudalis, Thomas Blon, Philippe Serp

The presence of defects in carbon materials, such as electronically unsaturated carbon sites, can profoundly affect their magnetic ordering and chemical reactivity. The detailed analysis of these species (edge states, σ free radicals, or carbene), which are pivotal for many applications, remains a…

Journal of Physical Chemistry C, 2025, 129 (7), pp.3539-3560. ⟨10.1021/acs.jpcc.4c07975⟩. ⟨hal-04975505⟩

• Article dans une revue

Spin-state stability in Mn2O3 across the volume collapse phase transition under pressure up to 41 GPa

V. Balédent, S. Shieh, Jean-Pascal Rueff

Physical Review B, 2025, 111 (3), pp.035122. ⟨10.1103/PhysRevB.111.035122⟩. ⟨hal-04902592⟩