Ionization-potential depression and dynamical structure factor in dense plasmas

Chengliang Lin, Gerd Röpke, Wolf Dietrich Kraeft, Heidi Reinholz

    Research output: Contribution to journalArticlepeer-review

    45 Citations (Scopus)


    The properties of a bound electron system immersed in a plasma environment are strongly modified by the surrounding plasma. The modification of an essential quantity, the ionization energy, is described by the electronic and ionic self-energies, including dynamical screening within the framework of the quantum statistical theory. Introducing the ionic dynamical structure factor as the indicator for the ionic microfield, we demonstrate that ionic correlations and fluctuations play a critical role in determining the ionization potential depression. This is, in particular, true for mixtures of different ions with large mass and charge asymmetry. The ionization potential depression is calculated for dense aluminum plasmas as well as for a CH plasma and compared to the experimental data and more phenomenological approaches used so far.

    Original languageEnglish
    Article number013202
    JournalPhysics Review E
    Issue number1
    Publication statusPublished - 6 Jul 2017


    Dive into the research topics of 'Ionization-potential depression and dynamical structure factor in dense plasmas'. Together they form a unique fingerprint.

    Cite this