Equation Icon  x γ ℓ2Pke+(x) + ke−(x) Eˆ (x)Tg,k,μ = ------------------Tg,k,μ (66 ) ∫ 8π2∑ 2 EˆzTg,k,μ = γ-ℓP νvTg,k,μ (67 ) ℐ 4π v∈ ℐ ∫ 2∑ EˆϕT = γ-ℓP μ T (68 ) ℐ g,k,μ 4π v g,k,μ v∈ ℐ