“…Each semicircle in the Cole–Cole semicircle graphic represents a dielectric relaxation process. 27,28 For example, for #T001, two Cole–Cole circles can be observed, corresponding to the peak at approximately 9 GHz ( ε ′ ≈ 10.2, ε ′′ ≈ 0.8) and 11 GHz ( ε ′ ≈ 10, ε ′′ ≈ 0.9). Four Cole–Cole circles can be observed for #T100, corresponding to the peaks at 9 GHz ( ε ′ ≈ 12.6, ε ′′ ≈ 3.0), 11.17 GHz ( ε ′ ≈ 12.9, ε ′′ ≈ 2.7), 13 GHz ( ε ′ ≈ 12.4, ε ′′ ≈ 2.8) and 16 GHz ( ε ′ ≈ 12.8, ε ′′ ≈ 4).…”