1997/05/13 by Frédéric Mila, Frederic Mila, Charles Stafford +1 · 3 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.57.1457
published as Phys. Rev. B 57, 1457 (1998) · 4 Latex pages with 5 encapsulated figures. Requires psfig.sty
arxiv created 1997/05/13 · openalex publication_date 1998/01/15 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Persistent currents in a Moebius ladder are shown to be very sensitive to the effects of intrachain interactions on the hopping of electrons between chains. Their periodicity as a function of flux is doubled for strong enough repulsive interactions because electrons cannot hop coherently between the chains and have to travel along the full edge of the Moebius ladder, thus encircling the flux twice. The interplay of topology and interactions is shown to lead to interesting finite-size effects on the odd harmonics of the persistent current.