Biomimetic Synthesis of High-Tc, Type-II Superconductor Nanowires


  • The author thanks the Royal Society for the provision of a Research Fellowship, Professor S. Mann for useful discussions and suggestions, and Dr. S. A. Davis for discussions on crystallography. Grateful thanks are also extended to Paul Southern of the Electrodeposition group in the Department of Physics, University of Bristol for SQUID magnetometry. Supporting Information is available online from Wiley InterScience or from the author.


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Chitosan from crab shells is used to control the synthesis of superconductors. The morphological control over crystallization provided by the chitosan matrix during calcination allows the production of nanowires of the high-Tc superconductor Y124 (YBa2Cu4O8). SQUID magnetometry of these nanowires indicates that the high Tc is successfully retained in this highly anisotropic and technologically important morphology.