Evolution of the physical properties with Na content in the cobalt oxide superconductors Nax CoO2 · 1.3 H2 O

K. Matano, G. q. Zheng, J. Cmaidalka, Y. Sun, R. L. Meng, C. W. Chu

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摘要

We report measurements on the cobalt oxide superconductors Nax CoO2 · 1.3 H2 O over a wide Na content range x = 0.25 - 0.34, using X-ray diffraction, susceptibility and 59Co nuclear quadrupole resonance (NQR) techniques. We find that Tc increases with decreasing x but reaches to a plateau for x {less-than or slanted equal to} 0.28, which correlates closely with the NQR frequency that measures the occupancy of the Co 3d-orbitals.

原文English
頁(從 - 到)871-872
頁數2
期刊Physica B: Condensed Matter
378-380
發行號SPEC. ISS.
DOIs
出版狀態Published - 2006 5月 1

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 電氣與電子工程

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