Solution to task 677 from Chertov´s for extramural stud

Solution to task 677 from Chertov´s for extramural stud

677. Find the minimum energy Wmin required for the formation of an electron-hole pair in a GaAs crystal, if its specific conductivity γ changes by a factor of 10 when the temperature changes from 20 to 3 ° C.

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