Improving the accuracy of determination of compensation of impurites in pure weakly compensated germanium largest breakdown field
The article shows that the measurement field of electric breakdown Enp of the Insulation in a classically strong magnetic field (H) when T = 4.2 K allows to determine the value of the degree of compensation To net in germanium K < 50% is much more accurate than when H = 0. Parameter S = Enp/H the dependence of S = f (K) is introduced calculated; the curve allows to determine K, if H and Enp is known. To reduce the resistance of the samples it recommended to carry out measurements in the presence of the impurity illumination. It is shown that at low excitation intensities of such magnitude Enp does not change.