Commit ca146b58 authored by Anton Akhmerov's avatar Anton Akhmerov
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more h1 removals

parent f695c5ef
......@@ -206,7 +206,7 @@ $$g_A = N_A \delta(E_A),\quad g_D = N_D \delta(E_G - E_D)$$
How large can $N_D/N_A$ be? The distance between donors should be such that the states don't overlap, so the distance must be much larger than 4 nm. Therefore **maximal** concentration of donors before donor band merges with conduction band is $N_D \lesssim (1Å/4\textrm{nm})^3 \sim 10^{-5}\ll N_C$.
# Number of carriers
## Number of carriers
Charge conservation:
$$n_e - n_h + n_D - n_A = N_D - N_A$$
......
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