(BEDT-TTF)2Cu2(CN)3 Spin Liquid: Beyond the Average Structure
| Autor: | Ognjen Milat, V. Balédent, Kazushi Kanoda, Silvia Tomić, Enric Canadell, Jean-Paul Pouget, Pierre Fertey, Gilles Guillier, Vita Ilakovac, Denis Petermann, Pere Alemany, Pascale Foury-Leylekian, Alla Arakcheeva, Kazuya Miyagawa |
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| Přispěvatelé: | Croatian Science Foundation, Ministerio de Economía y Competitividad (España), Generalitat de Catalunya, Laboratoire de Physique des Solides (LPS), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Chimie Physique - Matière et Rayonnement (LCPMR), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Synchrotron SOLEIL (SSOLEIL), Centre National de la Recherche Scientifique (CNRS), Ecole Polytechnique Fédérale de Lausanne (EPFL), The University of Tokyo (UTokyo), Departament de Quimica Fisica and Institut de Quimica Teorica i Computacional (IQTCUB), Universitat de Barcelona (UB), Institut de Ciència de Materials de Barcelona (ICMAB), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC) |
| Rok vydání: | 2018 |
| Předmět: |
Centrifugació
Work (thermodynamics) Materials science Mott transition General Chemical Engineering Geometrical frustration Disproportionation mott transition molecular spin liquids geometrical frustration x-ray diffraction Centrifugation 02 engineering and technology Triclinic crystal system mott transition molecular spin liquids geometrical frustration X-ray diffraction 01 natural sciences Inorganic Chemistry 0103 physical sciences lcsh:QD901-999 [CHIM.CRIS]Chemical Sciences/Cristallography General Materials Science 010306 general physics Difracció de raigs X Condensed matter physics Charge (physics) Liquids X-rays diffraction 021001 nanoscience & nanotechnology Condensed Matter Physics Líquids 3. Good health Molecular spin liquids X-ray crystallography lcsh:Crystallography Quantum spin liquid Software_PROGRAMMINGLANGUAGES 0210 nano-technology |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname Crystals Crystals, MDPI, 2018, 8 (4), pp.158. ⟨10.3390/cryst8040158⟩ Dipòsit Digital de la UB Universidad de Barcelona Crystals, Vol 8, Iss 4, p 158 (2018) Crystals; Volume 8; Issue 4; Pages: 158 |
| ISSN: | 2073-4352 |
| DOI: | 10.3390/cryst8040158⟩ |
| Popis: | Foury-Leylekian, Pascale et al. 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. We thank Joon I. Jang for his work related to SHG measurements. S.T. acknowledges the support by the Croatian Science Foundation project IP-2013-11-1011. Work in Spain was supported by the Spanish Ministerio de Economía y Competitividad (Grants FIS2015-64886-C5-4-P and CTQ2015-64579-C3-3-P) and Generalitat de Catalunya (217SGR1506 and XRQTC). E.C. acknowledges the support of the Spanish MINECO through the Severo Ochoa Centers of Excellence Program under Grant SEV-2015-0496. |
| Databáze: | OpenAIRE |
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