- #1
r.sahebi
- 12
- 0
what is the value of "N" ?
Hi to everyone
in the following equation (electrical conductivity in correlated barrier hopping (CBH) model), N is the density of localized states..
I read these matter in some papers but anyone has reported a value for it.
how i must determine this value?
σ_ac=((π^2 N^2 ε^*)/24) [(8e^2)/(ε^* W_M )]^6 (ω^s/τ^β )
ε^*=ε_1+iε_2
ε^* is complex dielectric constant
ε_1 and ε_2 are the real and imaginary parts of the complex dielectric constant, respectively.
W_M is the maximum barrier height of the material under investigation
τ is the effective relaxation time and the exponent s is related to W_M at low temperature by the relation:
s=1-β=1-(6k_BT/W_M)
k_B is is Boltzmann's constant.
Hi to everyone
in the following equation (electrical conductivity in correlated barrier hopping (CBH) model), N is the density of localized states..
I read these matter in some papers but anyone has reported a value for it.
how i must determine this value?
σ_ac=((π^2 N^2 ε^*)/24) [(8e^2)/(ε^* W_M )]^6 (ω^s/τ^β )
ε^*=ε_1+iε_2
ε^* is complex dielectric constant
ε_1 and ε_2 are the real and imaginary parts of the complex dielectric constant, respectively.
W_M is the maximum barrier height of the material under investigation
τ is the effective relaxation time and the exponent s is related to W_M at low temperature by the relation:
s=1-β=1-(6k_BT/W_M)
k_B is is Boltzmann's constant.