Metal–Insulator Transition in κ-(ET)2X and (DCNQI)2M: Two Contrasting Manifestation of Electron Correlation

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  • Metal Insulator Transition in カッパ ET 2X and DCNQI 2M Two Contrasting Manifestation of Electron Correlation
  • Metal–Insulator Transition in κ-(ET)<sub>2</sub>X and (DCNQI)<sub>2</sub>M: Two Contrasting Manifestation of Electron Correlation
  • Metal-insulator transitions in κ-(ET)2X and (DCNQI)2M: Two contrasting manifestation of electron correlation
  • Metal–Insulator Transition in κ-(ET)2X and (DCNQI)2M: Two contrasting manifestations of electron correlation

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One of the clear manifestations of electron correlation in condensed matter is metal–insulator (MI) transition. The organic conductors κ-(ET)2X and (DCNQI)2M are contrasting textbook materials exhibiting correlation-induced MI transition in a single-π band with half filling and a π–d hybrid multiband with tunable band filling, respectively. By comparing these two systems, we learn prototypical manifestations of electron correlation in purely electronic and lattice-coupled manners.

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