New ambient pressure organic superconductors kappa H- and kappa L-(DMEDO-TSeF)2[Au(CN)4](THF).
We have developed two novel organic superconductors kappa H- and kappa L-(DMEDO-TSeF)2[Au(CN)4](THF) (DMEDO-TSeF = dimethyl(ethylenedioxy)tetraselenafulvalene) with the onset transition temperatures of 4.8 K for the kappa H-phase and 3.0 K for the kappa L-phase at ambient pressure, where DMEDO-TSeF is the second example following tetramethyltetraselenafulvalene (TMTSF) after an interval of 25 years as a sulfur-free donor providing a bulk organic superconductor.
Shirahata
Takashi
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Imakubo Initiative Research Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan. tsirahat@riken.jp; imakubo@riken.jp
Kibune
Megumi
M
Imakubo
Tatsuro
T