, , .
, φ 0 , Δ ns, Δ ps.
(φ 0=0) . () (-Δ n, -Δ p).
Δ n, Δ p.
, σs
, (8.15)
σ 0 .
,
, (8.16)
μns, μps .
, (8.16) . , , .
, (8.17)
.
. 8.3 .
. 8.3. : 1 n-;
2 i-; 3 p-
Gs =f(Ys) ( ). , Ys >0 , Ys <0 . ( 1) Ys >0 Ys Δ Gs >0. Ys Δ Gs (φ 0=0). | Ys | Δ Gs <0. , . . |- Ys | , nps > nns.
Δ Gs =f(Ys)
, (8.18)
,
.
, Ys min . , , (2) .
(2) , . Ys min ( 3). .