Novel Low Temperature Modulated Structure of the Ambient Pressure Superconductor (BEDT-TTF)2I3 and a Design Strategy for New Superconducting Polyhalide Phases
- 1 March 1985
- journal article
- research article
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 119 (1), 347-355
- https://doi.org/10.1080/00268948508075184
Abstract
The first ambient pressure S-based organic superconductor (BEDT-TTF)2I3, abbreviated (ET)2I3, exhibits a novel modulated structure below ∼ 200 K. At 125 K the ET molecules and I3 − anions exhibit large displacements 0.124 (3) A and 0.281 (1) A, respectively, from their positions in the “average structure.” New ambient pressure superconducting polyhalide derivatives such as (ET)2IBr2 are discussed with transition temperatures of 2.7 K, and in one sample, 4.2 K.Keywords
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