Figure : TOP: HSA-tetralayer junctions, BOTTOM: bR-triple bilayer (see ref. ) junctions, both in MpD configurations. Panels (A) and (B) depict the impedance phase versus frequency (Bode plot) for approximately 20 junctions of HSA and bR, respectively. Panels (C) and (D) present histograms of the junction current density at an applied bias of +0.1 V for around 20 junctions of HSA and bR, respectively.