Charge Distribution in the Surface BEDT-TTF Layer of α-(BEDT-TTF)<sub>2</sub>I<sub>3</sub>at Room Temperature with Scanning Tunneling Microscopy

DOI Web Site 被引用文献7件 参考文献18件
  • Eiichi Mori
    Department of Physics, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
  • Hidemasa Usui
    Department of Physics, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
  • Hirokazu Sakamoto
    Department of Physics, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
  • Kenji Mizoguchi
    Department of Physics, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
  • Toshio Naito
    Division of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan

この論文をさがす

説明

The charge distribution in the surface BEDT-TTF layer of the α-(BEDT-TTF) 2 I 3 crystal with the charge disproportionation state at room temperature was studied in detail by a scanning tunneling microscope (STM), where BEDT-TTF (abbreviated as ET) is bis(ethylenedithio)tetrathiafulvalene. The obtained molecular charge distribution in the surface ET layer suggests that the electronic states of the surface ET layer at room temperature is the charge-ordered state, stable below 135 K in bulk crystals, rather than the charge disproportionation state above 135 K. The most probable mechanism underlying this remarkable finding is the particular freedom to the surface ET layer. The missing of the I 3 layer partially removes the structural constraint of the steric interaction between the thermally vibrating ethylene groups and the neighboring two I 3 layers. This mechanism would have something in common with the layered ET complexes.

収録刊行物

被引用文献 (7)*注記

もっと見る

参考文献 (18)*注記

もっと見る

関連プロジェクト

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