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Equipe AMA

AMA : Atomes, Molécules et Agrégats.

Group Leader : Jean-Yves Chesnel

The AMA members are exploring the interaction of ions with dilute matter ranging from isolated molecules to atomic or molecular clusters. Most of the attention is focused on the stability and the fragmentation dynamics of multi-atomic systems after their excitation/ionization by ion impact at velocities of a few tenths of atomic velocities.

Following its long tradition, the AMA team investigates collision-induced mechanisms of fundamental interest, such as electron interference effects and shakeoff processes. In addition, a major goal of the team is to provide valuable upstream information relevant for societal issues. To gain new insights into radiation damage processes, the team aims to describe, at the molecular level, the early stages of ion-induced fragmentation of biomolecules. Also, AMA investigates reactions involving polycyclic aromatic hydrocarbons, carbon clusters and fullerene precursors which are of prime interest for astrophysics and atmospheric chemistry.

The highlights obtained by the AMA team, as well as its attractiveness through its collaborations and contributions to networks and conference organization, have recently been supported through the recognition of the exceptional achievements of one of its young members : Alicja Domaracka-Rousseau received the “médaille de Bronze” in 2015 from the CNRS.

Recent publications

- Molecular Growth Inside of Polycyclic Aromatic Hydrocarbon Clusters Induced by Ion Collisions, J. Phys. Chem. Lett. 6 (2015) 1536–1542
doi : 10.1021/acs.jpclett.5b00405
- Interatomic Coulombic Decay as a New Source of Low Energy Electrons in slow Ion-Dimer Collisions, Phys. Rev. Lett. 114 (2015) 033201
doi : 10.1103/PhysRevLett.114.033201
- Young-Type Interferences with Electrons - Basics and Theoretical Challenges in Molecular Collision Systems, Springer Series on Atomic, Optical, and Plasma Physics 77, © Springer Verlag Berlin-Heidelberg (2014), 227 pages, 206 figs
doi : 10.1007/978-3-642-38479-0_1
- Formation of anions and cations via a binary-encounter process in OH+ + Ar collisions : The role of dissociative excitation and statistical aspects, Physical Review A 89, 062721 (2014)
doi : 10.1103/PhysRevA.89.062721
- Dynamics of Glycine Dications in the Gas Phase : Ultrafast Intramolecular Hydrogen Migration versus Coulomb Repulsion, J. Phys. Chem. Lett. 4 (2013) 3903–3909
doi : 10.1021/jz4020234


European Networks

  • I3 ITS-LEIF : Distributed European Facility Ion Technology and Spectroscopy at Low Energy Ion Beam Facilities, ARIBECaen, H-EBIT-Heidelberg, ZERNIKE-LEIF-Groningen, ELISA-Aarhus, QU-LEIF-Belfast
  • COST Action Nano-IBCT : Nanoscale insights into Ion Beam Cancer Therapy, MP1002
  • LIA DYNAMICS : International associated Laboratory “Fragmentation dynamics of complex molecular systems”, CIMAP – Depart. of Physics, Stockholm University – Depart. de Quimica, Universidad Autonoma de Madrid
  • COST Action XLIC : XUV/X-ray light and fast ions for ultrafast chemistry, CM1204
  • ITN ARGENT : Advanced Radiotherapy Generated by Exploiting Nanoprocesses and Technologies,
  • PICS (Programme International de Coopération Scientifique) : cooperation with the Universidad Autonoma de Madrid
  • PHC Balaton (Partenariat Hubert Curien) : French-Hungarian cooperation with ATOMKI, Debrecen - Contract n°27860ZL
  • PHC Galilée (Partenariat Hubert Curien) : French-Italian cooperation
  • CNRS-MTA Cooperation : French-Hungarian cooperation with ATOMKI, Debrecen – ANION Project (2014-2015)

Conference organisation

  • 3rd ITS LEIF Winter School, 8-11 March 2010, Pralognan
  • 5th ITS LEIF Annual Meeting, 10-14 May 2010, Alghero
  • 22nd International Symposium on Ion Atom Collisions (ISIAC), 22-25 July 2011, Caen
  • 1st Nano-IBCT Conference, 2-6 October 2011, Caen
  • Workshop “Température : contrôle et réactivité” of the GDR 3533 “Edifices moléculaires isolés et environnés”, 15-17 October 2012, Cabourg
  • 4th International Workshop on the creation of a RADAM Database (concerning Radiation Damage in biomolecular systems), 1-2 October 2013, Caen, France
  • 1st Meeting of the XLIC Working Group 2 “Reactivity of highly excited and highly charged molecules”, 24-27 February 2014, Port-en-Bessin
  • Molecular Physics Workshop, 7-10 July 2015, Caen

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