Effect of oxygen concentration on superconducting properties of rubidium tungsten bronzes Rb x WO y

L. C. Ting*, H. H. Hsieh, H. H. Kang, D. C. Ling, H. L. Liu, W. F. Pong, F. Z. Chien, P. H. Hor

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

4 引文 斯高帕斯(Scopus)

摘要

Superconducting transition temperature (T c) as a function of oxygen concentration for hexagonal rubidium tungsten bronzes Rb x WO y with 2.80 ≤ y ≤ 3.07 and x = 0.19, 0.23, and 0.27 has been systematically investigated. Three regions corresponding to T c < 2 K (denoted as superconductivity suppressed region), T c∼ 3 K (superconductivity uniform region) and T c > 3 K (superconductivity enhanced region) were identified in T c-y phase diagram for Rb 0.19WO y and Rb 0.23WO y. No superconductivity enhanced region was observed for Rb 0.27WO y. The superconductivity suppressed region shifts toward higher oxygen content as rubidium concentration increases. The local ordering of the intercalated rubidium atoms might be responsible for the intriguing T c-y phase diagram of Rb x WO y.

原文英語
頁(從 - 到)249-253
頁數5
期刊Journal of Superconductivity and Novel Magnetism
20
發行號3
DOIs
出版狀態已發佈 - 2007 四月

ASJC Scopus subject areas

  • 電子、光磁材料
  • 凝聚態物理學

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