High-pressure study of superconducting and nonsuperconducting single crystals of the same nominal composition Rb0.8Fe2Se 2

M. Gooch, B. Lv, L. Z. Deng, T. Muramatsu, J. Meen, Y. Y. Xue, B. Lorenz, C. W. Chu

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12 引文 斯高帕斯(Scopus)

摘要

Two single crystalline samples with the same nominal composition of Rb 0.8Fe2Se2 prepared via slightly different precursor routes under the same thermal processing conditions were investigated at ambient and high pressures. One sample was found superconducting with a Tc of ∼31 K without the previously reported resistivity hump, and the other was unexpectedly found to be a narrow-gap semiconductor. While the high pressure data can be understood in terms of pressure-induced variation in doping, the detailed doping effect on superconductivity is yet to be determined.

原文English
文章編號184517
期刊Physical Review B - Condensed Matter and Materials Physics
84
發行號18
DOIs
出版狀態Published - 2011 十一月 15

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學

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