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@ARTICLE{Mller:1025623,
      author       = {Möller, Sören and Banszerus, L. and Knothe, A. and
                      Valerius, L. and Hecker, K. and Icking, E. and Watanabe, K.
                      and Taniguchi, T. and Volk, Christian and Stampfer, C.},
      title        = {{I}mpact of competing energy scales on the shell-filling
                      sequence in elliptic bilayer graphene quantum dots},
      journal      = {Physical review / B},
      volume       = {108},
      number       = {12},
      issn         = {2469-9950},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {FZJ-2024-03012},
      pages        = {125128},
      year         = {2023},
      abstract     = {We report on a detailed investigation of the shell-filling
                      sequence in electrostatically defined elliptic bilayer
                      graphene quantum dots (QDs) in the regime of low charge
                      carrier occupation, N≤12, by means of magnetotransport
                      spectroscopy and numerical calculations. We show the
                      necessity of including both short-range electron-electron
                      interaction and wave-function-dependent valley g-factors for
                      understanding the overall fourfold shell-filling sequence.
                      These factors lead to an additional energy splitting at half
                      filling of each orbital state and different energy shifts in
                      out-of-plane magnetic fields. Analysis of 31 different
                      bilayer graphene (BLG) QDs reveals that both valley g-factor
                      and electron-electron interaction-induced energy splitting
                      increase with decreasing QD size, validating theory.
                      However, we find that the electrostatic charging energy of
                      such gate-defined QDs does not correlate consistently with
                      their size, indicating complex electrostatics. These
                      findings offer significant insights for future BLG QD
                      devices and circuit designs.},
      cin          = {PGI-9},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-9-20110106},
      pnm          = {5222 - Exploratory Qubits (POF4-522) / GrapheneCore3 -
                      Graphene Flagship Core Project 3 (881603) / 2D4QT - 2D
                      Materials for Quantum Technology (820254) / DFG project
                      390534769 - EXC 2004: Materie und Licht für
                      Quanteninformation (ML4Q) (390534769)},
      pid          = {G:(DE-HGF)POF4-5222 / G:(EU-Grant)881603 /
                      G:(EU-Grant)820254 / G:(GEPRIS)390534769},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1103/PhysRevB.108.125128},
      url          = {https://juser.fz-juelich.de/record/1025623},
}