Ambient-pressure organic superconductor κ-(ET)2Ag(CN)[N(CN)2] formed with polymeric silver(I) complex anion

• 大塚, 晃弘

  Faculty of Agriculture, Meijo University

• 矢持, 秀起

  Faculty of Agriculture, Meijo University

• 前里, 光彦

  Research Center for Low Temperature and Materials Sciences, Kyoto University

• Otsuka, Akihiro

  Research Center for Low Temperature and Materials Sciences, Kyoto University

• Yamochi, Hideki

  Research Center for Low Temperature and Materials Sciences, Kyoto University

• Nakamura, Yuto

  Department of Applied Physics, Nagoya University

• Kishida, Hideo

  Department of Applied Physics, Nagoya University

• Ito, Hiroshi

  Department of Applied Physics, Nagoya University

• Maesato, Mitsuhiko

  Division of Chemistry, Graduate School of Science, Kyoto University

• Saito, Gunzi

  Faculty of Agriculture, Meijo University・Toyota Physical and Chemical Research Institute

抄録

We obtained a new cation radical salt of bis(ethylenedithio)tetrathiafulvalene (ET) with a κ-type packing motif, κ-(ET)2Ag(CN)[N(CN)2], by electrooxidation. In the salt, each ET layer is separated by polymeric {Ag(CN)[N(CN)2]-}∞ layers, which are composed of Ag(I) ions trigonally coordinated to form an infinite zigzag chain of -NC-Ag-NC-Agwith pendant dicyanamides. The salt undergoes a superconducting transition with a midpoint critical temperature (Tc) of 6.6K and an onset Tc of 7.2 K, thereby indicating the highest Tc among ET superconductors formed with a polymeric Ag(I) complex anion.

収録刊行物

• Journal of the Physical Society of Japan

  Journal of the Physical Society of Japan 84 2015-12-15

  Physical Society of Japan (JPS)

詳細情報

• CRID: 1050282810820360704
• NII論文ID: 120006027082
• ISSN: 13474073
• HANDLE: 2433/219409
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
  • IRDB
  • CiNii Articles