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NCUEIR > College of Science > Department of Physics > Proceedings > Item 987654321/14233

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/14233

Title:	Effects of Water Intercalation in NaxCoO2�yH2O
Authors:	Lin, J. Y.;Chen, Y. L.;Hsu, Ben;Liu, Chia-Jyi;Tai, Y. L.;Hsieh, C. A.;Lee, J. F.
Contributors:	物理學系
Date:	2009
Issue Date:	2012-09-10T06:15:18Z
Publisher:	IOP Publishing Ltd
Abstract:	Water intercalation is necessary for the occurrence of superconductivity in NaxCoO2 � yH2O. It is known that water insertion leads to the elongation of the c-axis. Beyond that, it remains controversial about the effects of water intercalation on the electronic structure of NaxCoO2 � yH2O. In this paper, we report the Co-K edge spectroscopy on y=0.7 and 1.4 samples, respectively. The spectra are compared with those of the reference samples. It is found that the variation of the Co valence can not be explained by the simple electron counting. These results are consistent with those of the previous chemical titration.
Relation:	25th International Conference on Low Temperature Physics (LT25) Journal of Physics: Conference Series, 150: 052138
Appears in Collections:	[Department of Physics] Proceedings

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