Superconductivity at 2. 8 K and 1. 5 kbar in. kappa. -(BEDT-TTF) sub 2 Cu sub 2 (CN) sub 3 : The first organic superconductor containing a polymeric copper cyanide anion

Journal Article · Wed Jun 12 04:00:00 EDT 1991 · Inorganic Chemistry; (United States)

DOI:https://doi.org/10.1021/ic00012a005· OSTI ID:5874121

Geiser, Urs; Carlson, K D; Williams, J M; Charlier, Jr, H A; Heindl, J E; Yaconi, G A; Love, B J; Lathrop, M W ^[1]; Schirber, J E; Overmyer, D L ^[2]; Ren, Jingquing; Whangbo, Myung-Hwan ^[3]

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1. Argonne National Lab., IL (United States)
2. Sandia National Labs., Albuquerque, NM (United States)
3. North Carolina State Univ., Raleigh, NC (United States)

Attempts to synthesize new k-phase superconductors have concentrated on ET salts with complex anions composed of Cu(I) or Ag(I) metal ions and pseudohalide anions. The targeted anion approach', by use of a preformed anion found in KCu{sub 2}(CN){sub 3}.H{sub 2}O and the presence of trace amounts of water, led to the discovery of the first copper-cyanide containing superconductor, K-(ET){sub 2}Cu{sub 2}(CN){sub 3}. The crystal structure, superconducting properties, and band electronic structure are described in this article. The complex k-(ET){sub 2}Cu{sub 2}(CN){sub 3} is in many ways similar to the superconductor K-(ET){sub 2}Cu(N(CN){sub 2})Cl, the superconductor with the highest T{sub c} reported to date. 28 refs., 3 figs.

• DOE Contract Number: W-31109-ENG-38; FG05-86ER45259
• OSTI ID: 5874121
• Journal Information: Inorganic Chemistry; (United States), Journal Name: Inorganic Chemistry; (United States) Vol. 30:12; ISSN 0020-1669; ISSN INOCA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360607* -- Other Materials-- Superconducting Properties-- (1992-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
CHEMICAL PREPARATION
COMPLEXES
COPPER COMPLEXES
CRITICAL TEMPERATURE
CYANIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
ORGANIC SUPERCONDUCTORS
PHYSICAL PROPERTIES
SILVER COMPLEXES
SUPERCONDUCTIVITY
SUPERCONDUCTORS
SYNTHESIS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPLEXES
TRANSITION TEMPERATURE