Theory of warm ionized gases: Equation of state and kinetic Schottky anomaly

Autor(en)

A. Capolupo, S. M. Giampaolo, F. Illuminati

Abstrakt

Based on accurate Lennard-Jones-type interaction potentials, we derive a closed set of state equations for the description of warm atomic gases in the presence of ionization processes. The specific heat is predicted to exhibit peaks in correspondence to single and multiple ionizations. Such kinetic analog in atomic gases of the Schottky anomaly in solids is enhanced at intermediate and low atomic densities. The case of adiabatic compression of noble gases is analyzed in detail and the implications on sonoluminescence are discussed. In particular, the predicted plasma electron density in a sonoluminescent bubble turns out to be in good agreement with the value measured in recent experiments.

Organisation(en)

Teilchenphysik

Externe Organisation(en)

Università degli Studi di Salerno, Istituto Nazionale di Fisica Nucleare (INFN), Roma, Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia

Journal

Physical Review E

Band

88

Anzahl der Seiten

6

ISSN

1539-3755

DOI

https://doi.org/10.1103/PhysRevE.88.042132

Publikationsdatum

10-2013

Peer-reviewed

Ja

ÖFOS 2012

103022 Plasmaphysik, 103029 Statistische Physik

Schlagwörter

Link zum Portal

https://ucris.univie.ac.at/portal/de/publications/theory-of-warm-ionized-gases-equation-of-state-and-kinetic-schottky-anomaly(f7bbd742-e817-4fc0-8496-8d25848cdb1a).html