Publications by authors named "Divya Sahani"
Article Synopsis
- Fractional quantum Hall (FQH) phases involve strong electronic interactions producing anyonic quasiparticles with unique properties, while integer quantum Hall (IQH) effects arise from the band topology of non-interacting electrons.* -
- Our research reveals unexpected "super-universality" in the critical behavior of FQH and IQH transitions, where both types exhibit the same critical scaling exponent (κ = 0.41 ± 0.02) and localization length exponent (γ = 2.4 ± 0.2).* -
- Using ultra-high mobility trilayer graphene devices, we demonstrate that these consistent critical exponents can be observed with short-range disorder, unlike previous studies that showed variability in conventional
In this Letter, we provide experimental evidence of the time-reversal symmetric Hall effect in a mesoscopic system, namely, high-mobility graphene-WSe heterostructures. This linear, dissipative Hall effect, whose sign depends on the sign of the charge carriers, persists up to room temperature. The magnitude and the sign of the Hall signal can be tuned using an external perpendicular electric field.
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