Effect of the Yb substitutions on the thermoelectric properties of CaMnO3

D. Flahaut; R. Funahashi; K. Lee; H. Ohta; K. Koumoto

doi:10.1109/ICT.2006.331291

Effect of the Yb substitutions on the thermoelectric properties of CaMnO₃

D. Flahaut, R. Funahashi, K. Lee, H. Ohta, K. Koumoto

Department of Materials Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

13 Citations (Scopus)

Abstract

Ca_1-xYb_xMnO₃ (x = 0-0.5) samples were prepared via solid state reaction in air. Electrical and thermoelectric properties have been investigated up to 1000K. The measurements reveal that the resistivity values are strongly affected by the charge carrier content and the octahedral distortion. The lowest p reaches 3mΩ.cm for x=0.15. Whereas the Seebeck coefficient depends only on the charge carrier concentration, the thermal conductivity of Ca_1-xYb_xMnO₃ is mainly governed by the mass difference between the Yb and Ca cations. The best ZT value, ZT=0.2, is obtained for x=0.05 at 1000K and demonstrates the good potentialities of these oxides as high temperature thermoelectric material.

Original language	English
Title of host publication	Proceedings ICT'06 - 25th International Conference on Thermoelectrics
Pages	103-106
Number of pages	4
DOIs	https://doi.org/10.1109/ICT.2006.331291
Publication status	Published - 2006
Event	ICT'06 - 25th International Conference on Thermoelectrics - Vienna, Austria Duration: 2006 Aug 6 → 2006 Aug 10

Publication series

Name	International Conference on Thermoelectrics, ICT, Proceedings

Other

Other	ICT'06 - 25th International Conference on Thermoelectrics
Country/Territory	Austria
City	Vienna
Period	06/8/6 → 06/8/10

All Science Journal Classification (ASJC) codes

Engineering(all)

Access to Document

10.1109/ICT.2006.331291

Cite this

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title = "Effect of the Yb substitutions on the thermoelectric properties of CaMnO3",

abstract = "Ca1-xYbxMnO3 (x = 0-0.5) samples were prepared via solid state reaction in air. Electrical and thermoelectric properties have been investigated up to 1000K. The measurements reveal that the resistivity values are strongly affected by the charge carrier content and the octahedral distortion. The lowest p reaches 3mΩ.cm for x=0.15. Whereas the Seebeck coefficient depends only on the charge carrier concentration, the thermal conductivity of Ca1-xYbxMnO3 is mainly governed by the mass difference between the Yb and Ca cations. The best ZT value, ZT=0.2, is obtained for x=0.05 at 1000K and demonstrates the good potentialities of these oxides as high temperature thermoelectric material.",

author = "D. Flahaut and R. Funahashi and K. Lee and H. Ohta and K. Koumoto",

year = "2006",

doi = "10.1109/ICT.2006.331291",

language = "English",

isbn = "1424408105",

series = "International Conference on Thermoelectrics, ICT, Proceedings",

pages = "103--106",

booktitle = "Proceedings ICT'06 - 25th International Conference on Thermoelectrics",

note = "ICT'06 - 25th International Conference on Thermoelectrics ; Conference date: 06-08-2006 Through 10-08-2006",

}

Flahaut, D, Funahashi, R, Lee, K, Ohta, H & Koumoto, K 2006, Effect of the Yb substitutions on the thermoelectric properties of CaMnO₃. in Proceedings ICT'06 - 25th International Conference on Thermoelectrics., 4133247, International Conference on Thermoelectrics, ICT, Proceedings, pp. 103-106, ICT'06 - 25th International Conference on Thermoelectrics, Vienna, Austria, 06/8/6. https://doi.org/10.1109/ICT.2006.331291

TY - GEN

T1 - Effect of the Yb substitutions on the thermoelectric properties of CaMnO3

AU - Flahaut, D.

AU - Funahashi, R.

AU - Lee, K.

AU - Ohta, H.

AU - Koumoto, K.

PY - 2006

Y1 - 2006

N2 - Ca1-xYbxMnO3 (x = 0-0.5) samples were prepared via solid state reaction in air. Electrical and thermoelectric properties have been investigated up to 1000K. The measurements reveal that the resistivity values are strongly affected by the charge carrier content and the octahedral distortion. The lowest p reaches 3mΩ.cm for x=0.15. Whereas the Seebeck coefficient depends only on the charge carrier concentration, the thermal conductivity of Ca1-xYbxMnO3 is mainly governed by the mass difference between the Yb and Ca cations. The best ZT value, ZT=0.2, is obtained for x=0.05 at 1000K and demonstrates the good potentialities of these oxides as high temperature thermoelectric material.

AB - Ca1-xYbxMnO3 (x = 0-0.5) samples were prepared via solid state reaction in air. Electrical and thermoelectric properties have been investigated up to 1000K. The measurements reveal that the resistivity values are strongly affected by the charge carrier content and the octahedral distortion. The lowest p reaches 3mΩ.cm for x=0.15. Whereas the Seebeck coefficient depends only on the charge carrier concentration, the thermal conductivity of Ca1-xYbxMnO3 is mainly governed by the mass difference between the Yb and Ca cations. The best ZT value, ZT=0.2, is obtained for x=0.05 at 1000K and demonstrates the good potentialities of these oxides as high temperature thermoelectric material.

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DO - 10.1109/ICT.2006.331291

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T3 - International Conference on Thermoelectrics, ICT, Proceedings

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BT - Proceedings ICT'06 - 25th International Conference on Thermoelectrics

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