Figure 4
Frequency dependence of the phase of the complex impedance of the NbTiN films. Measurements were performed between contacts separated by the distance 2.5 mm. For all samples, we observed the evolution from inductive to capacitive response with increasing frequency. With increasing the magnetic field, the capacitive response dominates over the inductance response. (a) Sample U. Phase = 90 in magnetic field 0.4–8 T at temperature 35 mK. (b) Sample N1 at temperature 200 mK. (c) Sample N2. Phase = 90 in magnetic field 1.1–8 T at temperature 200 mK. (d) Sample N2. Phase = 90 in magnetic field 1–8 T at temperature 200 mK.
