Triangular-Lattice Organic Mott Insulator with a Disorder-Free Polyanion

Inorganic Chemistry
Shinya TomenoHiroshi Kitagawa

Abstract

We report the synthesis, crystal and band structures, and transport properties of organic conductor κ-(ET)2Cu[Au(CN)2]Cl [ET = bis(ethylenedithio)tetrathiafulvalene], which has a triangular spin-lattice (S = 1/2) composed of (ET)2•+ dimers and polyanions with no disorder. The anisotropy of triangular lattice t'/t = 1.19 and physical properties indicate that this material is the first ET-based quantum-spin-liquid candidate having a nearly regular triangular lattice with a disorder-free anion.

References

Oct 4, 2003·Physical Review Letters·Y ShimizuG Saito
Jan 28, 2009·Acta Crystallographica. Section D, Biological Crystallography·Anthony L Spek
Mar 12, 2010·Nature·Leon Balents
May 20, 2014·Physical Review Letters·Takayuki IsonoHatsumi Mori
Sep 1, 2015·Physical Review Letters·T FurukawaK Kanoda
Nov 29, 2017·Nature Communications·M ShimozawaM Yamashita
Jun 28, 2018·Physical Chemistry Chemical Physics : PCCP·Gourhari JanaPratim K Chattaraj

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