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Low Temperature Anomalies in the Specific Heat and Magnetic Susceptibility of Na_{0.7}CoO_2 Samples

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Baran A., Zorkovská A., Feher A., Šebek J., Šantavá E., Hejtmánek J., Veverka M., Bradarić I., Ružička M.

Acta Physica Polonica A

2008

vol. 113

issue 1

495-498

We present a comparative study of Na_{0.7}CoO_2 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.

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1 Acta Physica Polonica A

1 2008

1 Baran A.

1 Bradarić I.

1 Feher A.

1 Hejtmánek J.

1 Ružička M.

1 Veverka M.

1 Zorkovská A.

1 Šantavá E.

1 Šebek J.

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Low Temperature Anomalies in the Specific Heat and Magnetic Susceptibility of Na_{0.7}CoO_2 Samples