Structure and properties of the one-dimensional cobalt oxide CaCo2O4
作者： M. Isobe , M. Arai , T. Kawashima , E. Takayama-Muromachi
DOI: 10.1016/J.PHYSC.2009.05.107
关键词: Seebeck coefficient 、 Mean free path 、 Electrical resistivity and conductivity 、 Impurity 、 Thermal conductivity 、 Cobalt oxide 、 Condensed matter physics 、 Thermoelectric materials 、 Phonon 、 Materials science
摘要: Abstract We have studied crystal structure and transport properties of the quasi one-dimensional cobalt oxide CaCo2O4. The CaCo2O4 phase crystallizes in calcium-ferrite type structure, which consists a corner- edge-shared CoO6 octahedron network including double chains. Large thermoelectric power (S ∼ 150 μV/K at 390 K) with metallic temperature dependence S, moderate resistivity (ρ ∼ 2.9 × 10−1 Ω cm carrier localization low temperature, normal thermal conductivity (κ ∼ 6.3 W/Km were observed. phonon mean-free path was calculated from observed data, as function temperature. long (l ∼ 24 A 300 K) implies that could be suppressed by impurity scattering phonons partial element substitution.
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sci-hub.se 参考文章(10)
P. Limelette, V. Hardy, P. Auban-Senzier, D. Jérome, D. Flahaut, S. Hébert, R. Frésard, Ch. Simon, J. Noudem, A. Maignan, Strongly correlated properties of the thermoelectric cobalt oxide Ca 3 Co 4 O 9 Physical Review B. ,vol. 71, pp. 233108- ,(2005) , 10.1103/PHYSREVB.71.233108
Mitsuyuki Shizuya, Masaaki Isobe, Eiji Takayama-Muromachi, Structure and properties of the CaFe2O4-type cobalt oxide CaCo2O4 Journal of Solid State Chemistry. ,vol. 180, pp. 2550- 2557 ,(2007) , 10.1016/J.JSSC.2007.07.008
Yuzuru Miyazaki, Kazutaka Kudo, Megumi Akoshima, Yasuhiro Ono, Yoji Koike, Tsuyoshi Kajitani, Low-Temperature Thermoelectric Properties of the Composite Crystal [Ca 2CoO 3.34] 0.614[CoO 2] Japanese Journal of Applied Physics. ,vol. 39, pp. 531- ,(2000) , 10.1143/JJAP.39.L531
Yoichi Ando, N. Miyamoto, Kouji Segawa, T. Kawata, I. Terasaki, Specific-heat evidence for strong electron correlations in the thermoelectric material(Na,Ca)Co2O4 Physical Review B. ,vol. 60, pp. 10580- 10583 ,(1999) , 10.1103/PHYSREVB.60.10580
A. C. Masset, C. Michel, A. Maignan, M. Hervieu, O. Toulemonde, F. Studer, B. Raveau, J. Hejtmanek, Misfit-layered cobaltite with an anisotropic giant magnetoresistance:Ca3Co4O9 Physical Review B. ,vol. 62, pp. 166- 175 ,(2000) , 10.1103/PHYSREVB.62.166
Nevill F. Mott, E. A. Davis, Kurt Weiser, Electronic processes in non-crystalline materials ,(1940)
Hiroya Sakurai, Eiji Takayama-Muromachi, Fujio Izumi, Ruben A. Dilanian, Takayoshi Sasaki, Kazunori Takada, Superconductivity in two-dimensional CoO2 layers. Nature. ,vol. 422, pp. 53- 55 ,(2003) , 10.1038/NATURE01450
R. D. Shannon, Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides Acta Crystallographica Section A. ,vol. 32, pp. 751- 767 ,(1976) , 10.1107/S0567739476001551
I. Terasaki, Y. Sasago, K. Uchinokura, Large thermoelectric power in NaCo 2 O 4 single crystals Physical Review B. ,vol. 56, ,(1997) , 10.1103/PHYSREVB.56.R12685
Charles Kittel, Paul McEuen, Introduction to solid state physics New York: Wiley. ,(1976)