Shock-ionization rate in the alloy Hg$_{0.80}$Cd$_{0.20}$Te

The dependence of the shock-ionization rate g on the electric field strength is obtained for the $n$-type alloy Hg$_{0.80}$Cd$_{0.20}$Te at temperatures T = 4.2 and 77 K. It is established that $g$ decreases with increase in temperature. At T = 4.2 K, nonmonotonic variation in $g$ is observed in a longitudinal magnetic field: the initial increase is replaced by a drop.