New misfit-layered cobalt oxide (CaOH)1.14CoO2

Mitsuyuki Shizuya, Masaaki Isobe, Yuji Baba, Takuro Nagai, Minoru Osada, Kosuke Kosuda, Satoshi Takenouchi, Yoshio Matsui, Eiji Takayama-Muromachi

研究成果: Article

31 引用 (Scopus)

抜粋

We synthesized a new cobalt oxide (CaOH)1.14CoO2 by utilizing a high-pressure technique. X-ray and electron diffraction studies revealed that the compound has a layered structure that consists of CdI2-type CoO2 layers and rock-salt-type double CaOH atomic layers. The two subcells have incommensurate periodicity along the a-axis, resulting in a misfit-layered structure. From resistivity and Seebeck coefficient measurements, we have shown that the two-dimensional (2-D) variable-range hopping (VRH) regime with hole conduction is dominant at low temperature for this compound. As temperature increases, the conduction mechanism undergoes crossover from the 2-D VRH regime to a thermal activation-energy-type regime.

元の言語English
ページ(範囲)249-259
ページ数11
ジャーナルJournal of Solid State Chemistry
180
発行部数1
DOI
出版物ステータスPublished - 2007 1
外部発表Yes

    フィンガープリント

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

これを引用

Shizuya, M., Isobe, M., Baba, Y., Nagai, T., Osada, M., Kosuda, K., Takenouchi, S., Matsui, Y., & Takayama-Muromachi, E. (2007). New misfit-layered cobalt oxide (CaOH)1.14CoO2 Journal of Solid State Chemistry, 180(1), 249-259. https://doi.org/10.1016/j.jssc.2006.10.014