Despite numerous recent studies on the Hall anomaly following the discovery of cuprate superconductivity, its origin remains contentious. We demonstrate—without invoking adjustable parameters—that a previously proposed mechanism, in which vacancies form within vortex lattice domains, provides a compelling explanation for the observations in ${\mathrm{Bi}}_2{\mathrm{Sr}}_2{\mathrm{CaCu}}_2{\mathrm{O}}_x$ thin films reported by Nitzav and Kanigel [Phys. Rev. B 107, 094516 (2023)]. In particular, the observed power-law behavior of ${\rho }_{xy}$ vs ${\rho }_{xx}$, with or without sign reversal, is consistent with the picture of vacancies on domains. Moreover, the effective vortex line length remains 1.5 unit cells (UC) across different experiments, independent of film thickness.

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• 2-dimensional systems
• Superconducting devices
• Superconductors
• Thin films
• Twisted heterostructures