Sample

№

Coefficient of electrical sensitivity, B (K)

Activation energy of electrical conductivity, ∆E (ev)

Temperature coefficient of electrical resistance, ∆а_t (K⁻)

C-10

−7170

1.24

−2.6 × 10⁻²

C-9

−1560

0.27

−5.7 × 10⁻³