Datasets for "Percolative Pathway to Stripe Order in KTaO3-Based Superconductivity"

The sensitivity of low-dimensional superconductors to fluctuations gives rise to emergent behaviorsbeyond the conventional Bardeen–Cooper–Schrieffer framework. Anisotropy is one such manifesta-tion, often linked to spatially modulated electronic states and unconventional pairing mechanisms.Pronounced in-plane anisotropy recently reported at KTaO3-based oxide interfaces points to theemergence of a stripe order in superconducting phase, yet its microscopic origin and formationpathway remain unresolved. Here, we show that controlled interfacial disorder in MgO/KTaO3(111)heterostructures drives a percolative evolution from localized Cooper-pair islands to superconductingpuddles and eventually to stripes. The extracted stripe width matches the spin precession length,suggesting a self-organized modulation governed by spin–orbit coupling and lattice-symmetry break-ing. These findings identify disorder as both a tuning parameter and a diagnostic probe for emergentsuperconductivity in two-dimensional quantum materials.