Thermoelectric power and resistivity of HgBa2CuO4+δ over a wide doping range

Ayako Yamamoto, Wei Zhi Hu, Setsuko Tajima

研究成果: Article査読

67 被引用数 (Scopus)

抄録

Thermoelectric power (TEP) and resistivity were systematically investigated for HgBa2CuO4+δ (Hg-1201) with various doping levels from high underdoping to slight overdoping. Polycrystalline Hg-1201 samples were carefully prepared from a mixture of HgO, BaO, and CuO. We paid particular attention to carbon impurity in the starting materials, resulting in a high-quality sample. This enabled us to measure reliable transport properties. Assuming one characteristic temperature T* for each doping level, both the TEP and the resistivity can be well scaled, as was reported in the other high- Tc superconductors. The doping dependence of T’s is in good agreement with that of spin gap temperatures determined by NMR as well as that of the pseudogap temperatures reported in some other high- Tc superconductors.

本文言語English
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
63
2
DOI
出版ステータスPublished - 2001 12 14
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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