Three Components Organic Superconductors: Intercalation of KH into C60
✍ Scribed by K. Imaeda; F. Tian; H. Inokuchi; K. Ichimura
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 142 KB
- Volume
- 145
- Category
- Article
- ISSN
- 0022-4596
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✦ Synopsis
We have prepared (KH) 3 C 60 as an initial composition by direct reaction of potassium hydride (KH) to C 60 . (KH) 3 C 60 had higher T c (19.5 K) and larger lattice constant (14.351 A > ) compared with K 3 C 60 prepared by doping of potassium metal. The expanded lattice constant is suggestive of the intercalation of hydrogen. The evidence of the inclusion of hydrogen was given by massanalyzed thermal desorption experiment. We have also prepared (NaH) 4!x (KH) x C 60 to study the substitutional e4ect of KH to (NaH) 4 C 60 . It was found that the superconducting phase is stabilized by substitution of only a few percent KH as seen in (NaH) 3.9 (KH) 0.1 C 60 .