Low temperature anomalies in the specific heat and magnetic susceptibility of Na0.7CoO2 samples
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We present a comparative study of Na0.7CoO2 samples obtained from three different sources and prepared by different methods. The specific heat and magnetic susceptibility measurements in the temperature range 2-300 K show substantial influence on the observed anomalies, which underlines that the system is extremely sensitive to preparation protocols.
Source:Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics, 2008, 113, 1, 495-498
- 13th Czech and Slovak Conference on Magnetism (CSMAG07), Jul 09-12, 2007, Kosice, Slovakia