Extended Data Fig. 6: Quantum oscillations observed in d.c. measurements.
From: Landau quantization and highly mobile fermions in an insulator
The two-probe d.c. conductance (G) as a function of the magnetic field B was measured by applying a small d.c. excitation with an amplitude of 1.5 mV via a Keithley 2400 while monitoring the d.c. current. This strict d.c. measurement yields results consistent with the low-frequency a.c. measurement reported in the main text. Data were taken at 2 K from a pair of contacts in device 2.
