2014/11/12 by Sandra Diehl, Diehl, Sandra, Torsten Methfessel +11
Engineering · Materials Science · Physics and Astronomy · #FOS: Physical sciences #Molecular Junctions and Nanostructures #Organic and Molecular Conductors Research #Strongly Correlated Electrons (cond-mat.str-el) #Superconductivity (cond-mat.supr-con) #Surface and Thin Film Phenomena
paper · pdf · doi:10.48550/arxiv.1411.3181
openalex publication_date 2014/11/12 · openalex created_date 2022/10/03 · openalex updated_date 2026/07/28
Low temperature scanning tunneling spectroscopy reveals the local density of states of the organic superconductor κ-(BEDT-TTF)2Cu[N(CN)2]Br, that was cut in-situ in ultra-high vacuum perpendicular to the superconducting BEDT-TTF layers. The spectra confirm that superconductivity is confined to the conducting BEDT-TTF layers, while the Cu[N(CN)2]Br anion layers are insulating. The density of states comprises a twofold superconducting gap, which is attributed to the two separated bands crossing the Fermi surface.