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- Title
(BEDT-TTF)2Cu2(CN)3 Spin Liquid: Beyond the Average Structure.
- Authors
Foury-Leylekian, Pascale; Ilakovac-Casses, Vita; Balédent, Victor; Fertey, Pierre; Arakcheeva, Alla; Milat, Ognjen; Petermann, Denis; Guillier, Gilles; Miyagawa, Kazuya; Kanoda, Kazushi; Alemany, Pere; Canadell, Enric; Tomic, Silvia; Pouget, Jean-Paul
- Abstract
We present here the first accurate determination of the exact structure of κ-(BEDT-TTF)2Cu2(CN)3. Not only did we show that the room temperature structure used over the last twenty years was incorrect, but we were also able to correctly and precisely determine it. The results of our work provide evidence that the structure presents a triclinic symmetry with two non-equivalent dimers in the unit cell, which implies a charge disproportionation between the dimers. However, structural refinement shows that the charge disproportionation is quite weak at room temperature.
- Subjects
QUANTUM spin liquid; METAL-insulator transitions; X-ray diffraction measurement
- Publication
Crystals (2073-4352), 2018, Vol 8, Issue 4, p158
- ISSN
2073-4352
- Publication type
Article
- DOI
10.3390/cryst8040158