Despite numerous recent studies on the Hall anomaly following the discovery
of cuprate superconductivity, the origin of this phenomenon remains
contentious. We demonstrate that a previously proposed mechanism, in which
vacancy-on-fragment of the flux-line crystal, provides an alternative
explanation for the observations of Bi2βSr2βCaCu2βOxβ thin films
made by Nitzav and Kanigel [Phys. Rev. B. 107, 094516 (2023)], without the need
for adjustable parameters. Specifically, we show that the power-law behavior of
Οxyβ over Οxxβ, with and without sign reversal, is consistent
with the picture of vacancies versus fragments. Interestingly, we find that the
effective length of vortex lines is consistently 1.5 unit cells (UC) across
different experiments, independent of film thickness.Comment: arXiv admin note: substantial text overlap with arXiv:2206.0338