Doublon Production in Correlated Materials by Multiple Ion Impacts

Recently, it was demonstrated that ions impacting a correlated finite graphene‐type honeycomb cluster can excite strong nonequilibrium states. In particular, this can lead to an enhanced population of bound pairs of electrons with opposite spin—doublons—where the doublon number can be increased further via multiple ion impacts. These predictions were made based on nonequilibrium Green functions (NEGF) simulations allowing for a time‐dependent non‐perturbative study of the energy loss of charged particles penetrating a strongly correlated system. Herein, these simulations are extended to larger clusters and longer simulation times, utilizing the recently developed G1–G2 scheme, which allows for a dramatic speedup of NEGF simulations. Furthermore, the dependence of the energy and doublon number on the time interval between ion impacts and on the impact point is investigated.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Doublon Production in Correlated Materials by Multiple Ion Impacts ; day:26 ; month:02 ; year:2022 ; extent:12
Physica status solidi / B. B, Basic solid state physics ; (26.02.2022) (gesamt 12)

Urheber
Borkowski, Lotte
Schlünzen, Niclas
Joost, Jan-Philip
Reiser, Franziska
Bonitz, Michael

DOI
10.1002/pssb.202100511
URN
urn:nbn:de:101:1-2022022614175656155090
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:36 MESZ

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Beteiligte

  • Borkowski, Lotte
  • Schlünzen, Niclas
  • Joost, Jan-Philip
  • Reiser, Franziska
  • Bonitz, Michael

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