Fractional Josephson effect in nonuniformly strained graphene
Shu-Ping Lee, Debaleena Nandi, Frank Marsiglio, Joseph Maciejko
DOI 10.1103/PhysRevB.95.174517 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Nonuniform strain distributions in a graphene lattice can give rise to uniform pseudomagnetic fields and associated pseudo-Landau levels without breaking time-reversal symmetry. We demonstrate that by inducing superconductivity in a nonuniformly strained graphene sheet, the lowest pseudo-Landau levels split by a pairing gap can be inverted by changing the sign of the pairing potential. As a consequence of this inversion, we predict that a Josephson π junction deposited on top of a strained graphene sheet exhibits one-dimensional gapless modes propagating along the junction. These gapless modes mediate single electron tunneling across the junction, giving rise to the 4π-periodic fractional Josephson effect.
Similar papers
Anomalous periodicity of magnetic interference patterns in encapsulated graphene Josephson junctions
similarity 0.90C. T. Ke et al.
Source status unknown — claims are unverified
Vacancy-engineered flat-band superconductivity in holey graphene
similarity 0.90Matheus S. M. de Sousa et al.
Source status unknown — claims are unverified
Supercurrent reversal in Josephson junctions based on bilayer graphene flakes
similarity 0.90Babak Zare Rameshti et al.
Source status unknown — claims are unverified
4π and 8π dual Josephson effects induced by symmetry defects
similarity 0.89Corneliu Malciu et al.
Source status unknown — claims are unverified
Topological Superconductivity in Twisted Multilayer Graphene
similarity 0.88Cenke Xu & Leon Balents
Source status unknown — claims are unverified
Josephson Effect in Fibonacci Superconductors from Topological Supragap States
similarity 0.88Ignacio Sardinero et al.
Source status unknown — claims are unverified