Fig. 5: Splitting of equilibrium FQHE states under current bias in Hall bars of different width, W. | Communications Physics

Fig. 5: Splitting of equilibrium FQHE states under current bias in Hall bars of different width, W.

From: Non-equilibrium excited-state fractionally quantized Hall effects observed via current bias spectroscopy

Fig. 5

The diagonal resistance Rxx (color bar on the right) is plotted vs. the LL filling factor ν (abscissa) and IDC (ordinate). Solid colored lines trace the evolution of the Rxx minima with IDC. a Color plot of Rxx for a Hall bar with width W = 400 μm. b Color plot of Rxx for W = 200 μm. c Color plot of Rxx for W = 100 μm. Refer to Fig. 2 for the definition of scale W. Note the similarly sloped lines  for all W, although the contrast is reduced in the smaller specimen. Here, T = 25 mK.

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