Ordering and manipulation of the magnetic moments in large-scale superconducting pi-loop arrays

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Hilgenkamp, Hans and Ariando and Smilde, Henk-Jan H. and Blank, Dave H.A. and Rijnders, Guus and Rogalla, Horst and Kirtley, John R. and Tseui, Chang C. (2003) Ordering and manipulation of the magnetic moments in large-scale superconducting pi-loop arrays. Nature, 422 . pp. 50-53. ISSN 00280836

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Abstract:Since the discovery of high-transition-temperature (high-Tc) superconductivity in layered copper oxides1, many researchers have searched for similar behaviour in other layered metal oxides involving 3d-transition metals, such as cobalt and nickel. Such attempts have so far failed, with the result that the copper oxide layer is thought to be essential for superconductivity. Here we report that NaxCoO2dotyH2O (x 0.35, y 1.3) is a superconductor with a Tc of about 5 K. This compound consists of two-dimensional CoO2 layers separated by a thick insulating layer of Na+ ions and H2O molecules. There is a marked resemblance in superconducting properties between the present material and high-Tc copper oxides, suggesting that the two systems have similar underlying physics
Item Type:Article
Copyright:© 2008 Nature Publishing Group
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/40525
Official URL:http://dx.doi.org/10.1038/nature01442
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