Skip to Main content Skip to Navigation
Journal articles

Caloric curve for the liquid-to-gas transition of the H$_{25}^+$ hydrogen cluster ion

Abstract : High energy collisions (60 keV/amu) of the H 25 + hydrogen cluster ions with an helium target have been completely analyzed on an event-by-event basis in a recently developed multi-coincidence experiment. By selecting specific decay reactions we can start after the energizing collision with a microcanonical cluster ion ensemble of fixed excitation energy. From the respective fragment distributions for these selected decay reactions we derive corresponding temperatures of the decaying cluster ions. The relation between this temperature and the excitation energy (caloric curve) exhibits the typical prerequisites (plateau region) of a first order phase transition in a finite system, in the present case signaling the transition from a bound cluster to the free gas phase type situation.
Complete list of metadata

http://hal.in2p3.fr/in2p3-00011863
Contributor : Sylvie Flores Connect in order to contact the contributor
Submitted on : Wednesday, May 26, 2021 - 4:19:07 PM
Last modification on : Friday, September 10, 2021 - 1:50:22 PM
Long-term archiving on: : Friday, August 27, 2021 - 8:22:23 PM

File

Gobet2002.pdf
Files produced by the author(s)

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Collections

Citation

F. Gobet, B. Farizon, M. Farizon, M.J. Gaillard, J.P. Buchet, et al.. Caloric curve for the liquid-to-gas transition of the H$_{25}^+$ hydrogen cluster ion. International Journal of Mass Spectrometry, Elsevier, 2002, 220, pp.263-272. ⟨10.1016/S1387-3806(02)00667-X⟩. ⟨in2p3-00011863⟩

Share

Metrics

Record views

327

Files downloads

53