Low density systems (atoms, molecules and clusters)

Low density systems (atoms, molecules and clusters)

Research in “low density matter” focuses on spectroscopy and dynamics of atoms, molecules and clusters, as well as on radiation-matter interaction. Investigations aim at acquiring information on electronic structure, reactivity and chemical-physical behavior of target systems used in different areas of basic and applied research: biology, astrophysics, environment and cultural heritage. They are also the basis for the modeling of atmosferic chemistry, interstellar space and biochemistry. Special attention is devoted to the development of new methodologies, both theoretical and experimental, and of new instrumentation for the investigation of low density systems.

Several classes of elementary processes under investigation:

1. Single / multiple ionization, molecular fragmentation by electron / ion impact and photoionization with synchrotron, laser and FEL radiation.
2. Elementary ionization processes relevant to biological radiation damage.
3. Excitation and ionization of targets of increasing complexity (such as building block molecules of functional materials, clusters and nanoparticles of metals), in seach of correlations within electronic, structural and chemical properties, and functional characteristics of materials of which they are the precursors.
4. Elementary ionic reactions for modeling of cold plasma of astrochemical interest.


About Marcello Coreno

My research activities address the electronic structure of matter and the dynamics of atomic and molecular interactions ruling reactive processes at the microscopic level. I've been focusing on the use of photoionization and photoemission techniques for the study of systems of increasing complexity, such as organic and biological molecules involved in conformational and tautomeric equilibria, metal complexes with organic molecules, clusters and nanoparticles, in order to correlate spectroscopic characteristics and geometric structure with their reactivity, also of photochemical type. I'm working for CNR -ISM at the Trieste branch, where I'm also carrying out management tasks obtained in projects and research infrastructure of international level, such as Elettra, CITIUS and FERMI. The outcome of my scientific activity in the field of Atomic and Molecular Physics has so far resulted in more than 250 works, published in international journals (such as Physical Review Letters, Nature Photonics, PCCP, Journal of the American Chemical Society, Journal of Chemical Physics, ...), as well as proceedings and contributions presented to national and international conferences and workshops, e.g. EUCMOS, MOLEC, EIPAM, Users' Meetings of Sinchrotron Radiation facilities such as Elettra (I), Soleil (F), Max-Lab (S), … A more detailed list of publications can be found in my ORCID profile (0000-0003-4376-808X) or at my institutional web page (CNR-people), www.cnr.it/peoplepublic/peoplepublic/index/schedaeng/u/marcello.coreno.