Observation of Distinct Metallic Conductivity in NaCo2O4
- 1 April 1994
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 33 (4B) , L581-582
- https://doi.org/10.1143/jjap.33.l581
Abstract
Electrical conductivity and powder X-ray studies have been made on (Sr1-αNa[α])CoO x after firing at 980°C in air. The data are explainable in terms of the mixed phase of SrCoO x (x∼2.5) and NaCo2O4. We found a distinct metallic conductivity in NaCo2O4; the resistivity decreases linearly to 12 K from room temperature. This compound may be another candidate mother oxide for future study of high-temperature superconductivity.Keywords
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