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1 2008

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Nonlinear current oscillations in a Josephson junction with fractal radioisotope composites

Kruchinin S., Novikov V., Klepikov V.

Metrology and Measurement Systems

2008

Vol. 15, nr 3

281-287

We present a new form of the Josephson junction with dielectric layer containing radioisotopic inclusions. The presence of additional generators of ionization in a semiconducting material (due to α - particles emitted by radioisotope inclusions) causes the essentially nonequilibrium dispersive characteristics of composite materials. Nonlinear current oscillations in such nonequilibrium Josephson junctions are investigated. It is worth noting that a Josephson junction with fractal layer acquires additional characteristics. Taking into account that the medium is a fractal one, the generalization of the oscillation equation by means of fractional integro-differential operators can be an adequate model of a tunnel junction in this case. An analysis of general modes of linear and nonlinear oscillations in a nonequilibrium fractal Josephson junction is carried out. Such electronic elements can be used for chaotic communication.