Dielectric properties of Na0.7CoO2 and of the superconducting Na0.3CoO2·1.3H2O

P. Ben-Ishai; E. Sader; Yu Feldman; I. Feiner; M. Weger

doi:10.1007/s10948-005-0024-z

Dielectric properties of Na_0.7CoO₂ and of the superconducting Na_0.3CoO₂·1.3H₂O

P. Ben-Ishai, E. Sader, Yu Feldman, I. Feiner, M. Weger

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

We present dielectric properties of ceramic anhydrous Na _0.7CoO₂ and the superconducting Na_0.3CoO ₂·1.3H₂O materials. The presence of water which induces superconductivity also may increase the dielectric constant (ε) of the hydrated material. This is consistent with the predicted relationship between the high ε and the enhancement of T_c in high T _c superconductors. The anhydrous sample is porous and the transport is due to some percolation via the pores. The porosity is much higher for the hydrated material and the transport is ionic inside bulk water.

Original language	English
Pages (from-to)	455-459
Number of pages	5
Journal	Journal of Superconductivity
Volume	18
Issue number	4
DOIs	https://doi.org/10.1007/s10948-005-0024-z
State	Published - Aug 2005
Externally published	Yes

Keywords

Dielectric permitivity
Hydrates
Superconductivity

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10.1007/s10948-005-0024-z

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title = "Dielectric properties of Na0.7CoO2 and of the superconducting Na0.3CoO2·1.3H2O",

abstract = "We present dielectric properties of ceramic anhydrous Na 0.7CoO2 and the superconducting Na0.3CoO 2·1.3H2O materials. The presence of water which induces superconductivity also may increase the dielectric constant (ε) of the hydrated material. This is consistent with the predicted relationship between the high ε and the enhancement of Tc in high T c superconductors. The anhydrous sample is porous and the transport is due to some percolation via the pores. The porosity is much higher for the hydrated material and the transport is ionic inside bulk water.",

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author = "P. Ben-Ishai and E. Sader and Yu Feldman and I. Feiner and M. Weger",

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AU - Ben-Ishai, P.

AU - Sader, E.

AU - Feldman, Yu

AU - Feiner, I.

AU - Weger, M.

N1 - Funding Information: This research is supported in part by the Israel Science Foundation (ISF, 2004 grant number: 618/04), and by the Klachky Foundation for Superconductivity.

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Y1 - 2005/8

N2 - We present dielectric properties of ceramic anhydrous Na 0.7CoO2 and the superconducting Na0.3CoO 2·1.3H2O materials. The presence of water which induces superconductivity also may increase the dielectric constant (ε) of the hydrated material. This is consistent with the predicted relationship between the high ε and the enhancement of Tc in high T c superconductors. The anhydrous sample is porous and the transport is due to some percolation via the pores. The porosity is much higher for the hydrated material and the transport is ionic inside bulk water.

AB - We present dielectric properties of ceramic anhydrous Na 0.7CoO2 and the superconducting Na0.3CoO 2·1.3H2O materials. The presence of water which induces superconductivity also may increase the dielectric constant (ε) of the hydrated material. This is consistent with the predicted relationship between the high ε and the enhancement of Tc in high T c superconductors. The anhydrous sample is porous and the transport is due to some percolation via the pores. The porosity is much higher for the hydrated material and the transport is ionic inside bulk water.

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KW - Hydrates

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Dielectric properties of Na_0.7CoO₂ and of the superconducting Na_0.3CoO₂·1.3H₂O

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Keywords

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