The decades-long standing puzzle of the origin of the Hall effect sign reversal in superconductors is resolved.
Significance and Impact
Our findings offer conclusive evidence that the existing theory provides a quantitative description of electric properties of type II superconductors.
- Developed a technique to fabricate atomically-thin van der Waals BSCCO films with bulk superconducting temperature.
- A double sign change of Hall resistance with reversed sign spanning both below and above Tc is observed.
- A quantitative agreement between the experiment and the vortex dynamics-based description of the Hall effect is found.
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