The multivalued current-voltage characteristics in the tunnel diodes

The perturbation of external high frequency signals on dynamical current-voltage (I-V) characteristics of tunnel diodes has been investigated experimentally alongside the interaction between the applied signal and the intrinsic frequencies of diodes. The multivalued I-V characteristics, intrinsic bistabilities, regions of frequency lock and amplification, as well as regions of chaotization and ordering of systems have been found.