Extended Data Fig. 10: Comparison of transport and penetration field capacitance.
From: Nematicity and orbital depairing in superconducting Bernal bilayer graphene
(A - B) ne − D phase diagram of Rxx and κ over a larger density range than Fig. 4d, including SC1. The superconducting regions are overlaid from transport onto the inverse compressibility map via the white dashed line. (C) linecuts of Rxx and κ at D = 0.95 V/nm across SC1. The noise of κ gives an upper bound of ~ 300 mK on a possible chemical potential jump due to a first order phase transition below our experimental resolution. The fermiology is added as determined in Fig. 2. (D) same as Fig. 4c for a different D = 1.1 V/nm. (E - F) κ (top panel) and Rxx (bottom panel) linecuts at D = 0.95 V/nm and 1.1 V/nm. At low ∣ne∣, several negative spikes in κ become apparent - illustrating the sensitivity of κ to first order phase transitions. The dashed lines mark zero as guide to the eye.
