Figure 2: Graphical sketches of the electron density together with the measured voltages.
From: The local nature of incompressibility of quantum Hall effect
In graphical sketches (a–f) green colour gradient depicts the electron density distribution at compressible regions, whereas black regions show incompressible regions and dashed lines correspond to thermodynamically compressible strips. Boxes denote different contacts such that colours identify, blue: probe contacts, red: inner contacts and yellow: source and drain contacts. At the top of each sketch the corresponding electric circuit of each situation is shown, where RC and RB denote the contact and compressible bulk resistances respectively, while CIB depicts the bulk capacitance and CIS the capacitance of the encircling strips. The measured voltages VH (solid thin black line), VL (solid thick red line) and VAB (broken blue line) are shown in g. Here the vertical lines are guide to eye to separate different mechanisms depicted in a–f.
