2006/12/06 by Tatsuhiko Nishi, Shin-ichi Kimura, Shin‐ichi Kimura +9 · 2 citations
Materials Science · Physics and Astronomy · #Magnetism in coordination complexes #Organic and Molecular Conductors Research #Physics of Superconductivity and Magnetism #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.75.014525
5 pages, 5 figures, to appear in Phys. Rev. B
arxiv created 2006/12/06 · openalex publication_date 2007/01/24 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The magnetic-field-induced superconductor-insulator-metal transition (SIMT) in partially deuterated \ensuremathκ\text\ensuremath-(BEDT\text\ensuremath-TTF)2Cu[N(CN)2]Br, which is just on the Mott boundary, has been observed using the infrared magneto-optical imaging spectroscopy. The infrared reflectivity image on the sample surface revealed that the metallic (or superconducting) and insulating phases coexist and they have different magnetic-field dependences. One of the magnetic-field dependence is SIMT that appeared on part of the sample surface. The SIMT was concluded to originate from the balance of the inhomogeneity in the sample itself and the disorder of the ethylene end groups resulting from fast cooling.