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@ARTICLE{Teller:1047082,
      author       = {Teller, Justus and Schäfer, Christian and Moors, Kristof
                      and Bennemann, Benjamin and Lyatti, Matvey and Lentz,
                      Florian and Grützmacher, Detlev and Riwar, Roman-Pascal and
                      Schäpers, Thomas},
      title        = {{F}rustrated {F}rustration of {A}rrays with
                      {F}our-{T}erminal {N}b-{P}t-{N}b {J}osephson {J}unctions},
      journal      = {Physical review letters},
      volume       = {135},
      number       = {15},
      issn         = {0031-9007},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2025-04108},
      pages        = {156002},
      year         = {2025},
      note         = {Germany’s Excellence Strategy— Cluster of Excellence
                      Matter and Light for Quantum Computing (ML4Q) EXC
                      2004/1–390534769,BMBF Quantum Future project
                      “MajoranaChips” (Grant No. 13N15264)Quantum Future
                      project with Grant No. 13N14891Bavaria’s High-Tech Agenda
                      Project “Bausteine für das Quantencomputing auf Basis
                      topologischer Materialien mit experimentellen und
                      theoretischen Ansätzen” (Grant No. 07 02/686 58/1/21 1/22
                      2/23)},
      abstract     = {We study the frustration pattern of a square lattice with
                      in situ fabricated Nb-Pt-Nb four-terminal Josephson
                      junctions. The four-terminal geometry gives rise to a
                      checkerboard pattern of alternating fluxes f, f' piercing
                      the plaquettes, which stabilizes the
                      Berezinskii-Kosterlitz-Thouless transition even at
                      irrational flux quanta per plaquette, due to an unequal
                      repartition of integer flux sum f + f' into alternating
                      plaquettes. This type of frustrated frustration manifests as
                      a beating pattern of the dc resistance, with state
                      configurations at the resistance dips gradually changing
                      between the conventional zero- and half-flux states. Hence,
                      the four-terminal Josephson junction array offers a
                      promising platform to study previously unexplored flux and
                      vortex configurations and provides an estimate on the
                      spatial expansion of the fourterminal Josephson junction
                      central weak link area.},
      cin          = {PGI-9 / PGI-10 / PGI-2 / HNF},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-9-20110106 / I:(DE-Juel1)PGI-10-20170113 /
                      I:(DE-Juel1)PGI-2-20110106 / I:(DE-Juel1)HNF-20170116},
      pnm          = {5222 - Exploratory Qubits (POF4-522)},
      pid          = {G:(DE-HGF)POF4-5222},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1103/gxdc-py56},
      url          = {https://juser.fz-juelich.de/record/1047082},
}