分子性伝導体(DMe‐DCNQI)2Cuの物性と低温構造

  • 澤 博
    千葉大学大学院自然科学研究所

書誌事項

タイトル別名
  • Physical Properties and Crystal Structure at Low Temperature of the Molecular Conductor (DMe-DCNQI)2Cu System.
  • ブンシセイ デンドウタイ DMe-DCNQI 2Cu ノ ブッセイ ト テイオン コウゾウ

この論文をさがす

抄録

The mixed-valence Cu salt of DMe-DCNQI provides unique physical properties due to the interaction between the one-dimensional (1D) organic pπ band and the d-orbital of Cu ion. This system is metallic down to very low temperature at ambient pressure in spite of the 1D column structure, whereas the system exhibits a sharp metal-insulator (M-I) transition accompanied by a threefold superstructure under pressure. Reentrant behavior (M-I-M transition) is observed in the boundary pressure region. The selective dueteration of (DMe-DCNQI) 2Cu has enabled to control the chemical pressure. Application of this technique produces the Petf-T phase diagram of this system under ambient pressure. The effect of (chemical) pressure on these transitions in the system is generally understood from the change in charge transfer amount from metal ions to DCNQI molecules by low temperature crystal structure analysis and a doping method.

収録刊行物

参考文献 (20)*注記

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ