Thermoelectric and magnetic properties of Ca3Co 4-xCuxO9 + δ with x = 0.00, 0.05, 0.07, 0.10 and 0.15

Ankam Bhaskar, Z. R. Lin, Chia Jyi Liu

研究成果: Article

8 引文 斯高帕斯(Scopus)

摘要

Ca3Co4-xCuxO9 + a(x = 0.00, 0.05, 0.07, 0.10 and 0.15) samples were prepared by conventional solid-state synthesis and their thermoelectric properties were systematically investigated. The thermopower of all the samples was positive, indicating that the predominant carriers are holes over the entire temperature range. Ca 3Co3.85Cu0.15O9 + δ had the highest power factor of 2.17 μW cm1 K2 at 141 K, representing an improvement of about 64.4% compared to undoped Ca 3Co4O9+ δ. Magnetization measurements indicated that all the samples exhibit a low-spin state of cobalt ions. The observed effective magnetic moments decreased with increasing copper content.

原文English
頁(從 - 到)4884-4888
頁數5
期刊Materials Research Bulletin
48
發行號11
DOIs
出版狀態Published - 2013 十一月

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

指紋 深入研究「Thermoelectric and magnetic properties of Ca<sub>3</sub>Co <sub>4</sub>-<sub>x</sub>Cu<sub>x</sub>O<sub>9</sub> <sub>+</sub> δ with x = 0.00, 0.05, 0.07, 0.10 and 0.15」主題。共同形成了獨特的指紋。

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