Josephson junction with two superconducting current componentsстатья
Информация о цитировании статьи получена из
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Дата последнего поиска статьи во внешних источниках: 30 марта 2018 г.
Аннотация:The properties of a Josephson junction with the 2 pi- and 4 pi-periodic superconducting current component have been analyzed. In the range of low voltages, such a junction exhibits the 4 pi 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 beta < 1 in the hysteresis region. The effect the 4 pi-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.