Abstract
A simple and reproducible fabrication process for the synthesis of FeSe superconductors has been developed. The properties were characterized by X-ray diffraction, scanning electron microscope, superconductivity quantum interference device, and physical property measurement system. It showed a zero resistance superconducting critical temperature of ∼7.9 K and an onset critical temperature of ∼13.9 K. The upper critical magnetic field at zero temperature was estimated to be 31 T. The growth mechanism of FeSe flakes was also discussed.
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Acknowledgements
P.H. Zhao and W. Yan contributed equally to this paper. This work was supported by the Chinese–Romanian Intergovernmental S&T Cooperation Programme (Project No. CH-40-12/2010). This work was also supported by the National Natural Science Foundation of China (Grant Nos. 51172029, 91121012, and 10974019) and the Fundamental Research Funds for the Central Universities.
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Zhao, P.H., Yan, W., Yang, J.Y. et al. A Simple Fabrication of FeSe Superconductors with High Upper Critical Field. J Supercond Nov Magn 25, 1781–1785 (2012). https://doi.org/10.1007/s10948-012-1540-2
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DOI: https://doi.org/10.1007/s10948-012-1540-2