(RbxK1-x)3C60 superconductors: Formation of a continuous series of solid solutions

Chia Chun Chen, Stephen P. Kelty, Charles M. Lieber*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

84 引文 斯高帕斯(Scopus)

摘要

By means of an approach that employs alkali-metal alloys, bulk single-phase (RbxK1-x)3C60 superconductors have been prepared for all x between 0 and 1. For x = 1 it is shown that the maximum superconducting fraction, which approaches 100% in sintered pellets, occurs at a Rb to C60 ratio of 3:1. More importantly, single-phase superconductors are formed at all intermediate values of x, and it is shown that the transition temperature (Tc) increases linearly with x in this series of materials. The formation of a continuous range of solid solutions demonstrates that the rubidium- and potassium-doped C60 superconducting phases must be isostructural, and furthermore, suggests that the linear increase in Tc with x results from a chemical pressure effect.

原文英語
頁(從 - 到)886-888
頁數3
期刊Science
253
發行號5022
DOIs
出版狀態已發佈 - 1991 八月 23

ASJC Scopus subject areas

  • 多學科

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