Superfluid density wave as one kind of orbital-FFLO states

Author: Zhou, Yi

Affiliation: Institute of Physics, Chinese Academy of Sciences

Type: Poster

Display Dates: 22.07.2026 - 23.07.2026

Board: WT-091

A sufficiently strong parallel magnetic field between two weakly coupled superconducting ultrathin films produces staggered supercurrent loops and a superfluid density wave, yielding an inhomogeneous Fulde-Ferrell Larkin-Ovchinnikov (FFLO) state characterized by Josephson vortex-antivortex pairs. Conversely, a weak parallel magnetic field produces a uniform Fulde-Ferrell (FF) state. The transition between these states falls into the universality class of 2D commensurate-incommensurate transitions.