Josephson junction with two superconducting current components
Journal Article
·
· Journal of Experimental and Theoretical Physics
- University of Cairo (Egypt)
- Moscow State University, Baku Branch (Azerbaijan)
- Joint Institute for Nuclear Research, Bogoliubov Laboratory for Theoretical Physics (Russian Federation)
The properties of a Josephson junction with the 2π- and 4π-periodic superconducting current component have been analyzed. In the range of low voltages, such a junction exhibits the 4π periodicity of the phase difference for the Majorana current amplitude much smaller than the Josephson current, which makes it possible to observe Josephson current oscillations with a fractional period for small dissipation β < 1 in the hysteresis region. The effect the 4π-periodic Majorana current component is also manifested in a change in the sequence of steps in the ladder structure emerging on the current–voltage (I–V) characteristic of the junction. We have determined the interval of external electromagnetic radiation amplitudes, in which the manifestation of the fractional Josephson effect on the I–V characteristic is most significant.
- OSTI ID:
- 22756359
- Journal Information:
- Journal of Experimental and Theoretical Physics, Journal Name: Journal of Experimental and Theoretical Physics Journal Issue: 2 Vol. 125; ISSN JTPHES; ISSN 1063-7761
- Country of Publication:
- United States
- Language:
- English
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