Data for: Frustrated Frustration of Arrays with Four-Terminal Nb-Pt-Nb Josephson Junctionsdoi:10.26165/JUELICH-DATA/O3EAHVJülich DATA2025-07-041Teller, Justus; Schäfer, Christian; Moors, Kristof; Bennemann, Benjamin; Lyatti, Matvey; Lentz, Florian; Grützmacher, Detlev; Riwar, Roman-Pascal; Schäpers, Thomas, 2025, "Data for: Frustrated Frustration of Arrays with Four-Terminal Nb-Pt-Nb Josephson Junctions", https://doi.org/10.26165/JUELICH-DATA/O3EAHV, Jülich DATA, V1Data for: Frustrated Frustration of Arrays with Four-Terminal Nb-Pt-Nb Josephson Junctionsdoi:10.26165/JUELICH-DATA/O3EAHVTeller, JustusSchäfer, ChristianMoors, KristofBennemann, BenjaminLyatti, MatveyLentz, FlorianGrützmacher, DetlevRiwar, Roman-PascalSchäpers, ThomasJülich DATASchäpers, ThomasSchäpers, Thomas2025-07-04PhysicsJosephson junction arrayfrustration patternmulti-terminal Josephson junctionData sets used for the figures in the manuscript. 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 checker board 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-flux 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 four-terminal Josephson junction central weak link area.CC0 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