The c-axis charge traveling wave in coupled system of Josephson junctions
Yu. M. Shukrinov+, M. Hamdipour+*
+BLTP, Joint Institute for Nuclear Research, 141980 Dubna, Russia
*Institute for Advanced Studies in Basic Sciences, P.O.Box 45195-1159, Zanjan, Iran
Abstract
We demonstrate a manifestation of the charge traveling wave along
the c-axis (TW) in current voltage characteristics of coupled Josephson
junctions in high-Tc superconductors. The branches related to the TW
with different wavelengths are found for the stacks with different number of
Josephson junctions at different
values of system's parameters. Transitions between the TW branches and the
outermost branch are observed.
The electric charge in the superconducting layers and charge-charge
correlation functions for TW and outermost branches show different behavior
with bias current. We propose an experimental testing of the TW branching by
microwave irradiation.