Figure 3. The probability density function of the normalized conductance (n = I/(G₀V)) for some illustrative values of V.

The probability density function of n is expressed as ΔF/Δn, where F is the cumulative probability of each n ordered in increasing order. At each typical voltage, there are one or several characteristic conductance peaks. With the increase of V, the characteristic conductance peaks shift towards lower values, finally reaching approximately 1G₀ before the final CF rupture associated with RESET2.