Josephson dynamics and Shapiro steps at high transmissions: current bias regime

• Artem V. Galaktionov and
• Andrei D. Zaikin

Beilstein J. Nanotechnol. 2024, 15, 51–56, doi:10.3762/bjnano.15.5

• of intrinsic sub-Ohmic dissipation on integer Shapiro steps appearing on the I–V curve in the presence of external microwave radiation. Keywords: dissipation; Josephson effect; Shapiro steps; superconducting junctions; Introduction The key signature of the ac Josephson effect in superconducting

• voltage peaks can by no means alter any of our results and conclusions and may at most lead to an insignificant modification (decrease) of the numerical prefactor on the right-hand side of Equation 13. The result (Equation 13) demonstrates that the I–V curve of fully transparent superconducting junctions

• is expected to be linear in the current bias regime as long as the condition I − Ic ≪ Ic remains satisfied. These expectations appear to be supported by several recent experiments [6][7][8] performed with different types of transparent superconducting junctions (see also [3] for more details on the

Andreev spectrum and supercurrents in nanowire-based SNS junctions containing Majorana bound states

• Jorge Cayao,
• Annica M. Black-Schaffer,
• Elsa Prada and
• Ramón Aguado

Beilstein J. Nanotechnol. 2018, 9, 1339–1357, doi:10.3762/bjnano.9.127

• (outer MBSs). Despite the early predictions [4][23][24] of a 4π-periodic Josephson effect in superconducting junctions containing MBSs, in general we demonstrate that the unavoidable overlap of these MBSs renders the equilibrium Josephson effect 2π-periodic [26][27] in short and long junctions, since