Effects of high-frequency rectification in point contacts between normal metals
I. O. KulikPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovA. N. Omel’yanchukPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovI. G. TuluzovPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovT. Z. SarkisyantsPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov
ABI
Аннотация
The nonlinear uhf effects remaining in point contacts between normal metals up to frequencies of ω ∼ 1013−1014 sec−1 and temperatures of T ≲ 102 K are studied. The dependences of the rectified signal δI(V) = Ī(V) − I0(V) under laser irradiation of the contact on the frequency and the voltage applied to the contact are found in a microscopic theory (using the Green–Keldysh functions). Calculated numerically for a number of frequencies and temperatures, they agree satisfactorily with the results of experimental studies [R. W. Van den Heijden et al., Appl. Phys. Lett. 37, 245 (1980)].
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