Phase formation and magnetotransport of alkali metal doped Na[sub 0.75]CoO[sub 2] thermoelectric oxide
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© 2010 AIP Publishing. This is the accepted version of the following article: Jood, P. & Peleckis, G. & Wang, X. L. & Dou, S. X. & Yamauchi, H. & Karppinen, Maarit. 2010. Phase formation and magnetotransport of alkali metal doped Na[sub 0.75]CoO[sub 2] thermoelectric oxide. Journal of Applied Physics. Volume 107, Issue 9. 09D716/1-3. ISSN 0021-8979 (printed). DOI: 10.1063/1.3365491, which has been published in final form at http://scitation.aip.org/content/aip/journal/jap/107/9/10.1063/1.3365491.
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School of Chemical Technology |
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Authors
Jood, P.
Peleckis, G.
Wang, X. L.
Dou, S. X.
Yamauchi, H.
Karppinen, Maarit
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en
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09D716/1-3
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Journal of Applied Physics, Volume 107, Issue 9
Abstract
Synthesis and characterization of bulk NaxCoO2 samples substituted by K and Rb is reported. Phase formation studies revealed a narrow stable region for Na-alkali metal-Co system. Whisker and platelike single crystalline structures have been found to form on the surface of the pellets in case of K doping. All samples were metallic and no characteristic anomaly in R-T curves was observed for Rb doped sample. Magnetoresistance measured has a pronounced positive response only for K-doped and pure NaxCoO2 phases, reaching 11% and 7% at 5 K temperature, respectively.Description
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Jood, P. & Peleckis, G. & Wang, X. L. & Dou, S. X. & Yamauchi, H. & Karppinen, Maarit. 2010. Phase formation and magnetotransport of alkali metal doped Na[sub 0.75]CoO[sub 2] thermoelectric oxide. Journal of Applied Physics. Volume 107, Issue 9. 09D716/1-3. ISSN 0021-8979 (printed). DOI: 10.1063/1.3365491.