Abstract
The investigation on the growth of single crystals of the Tl-Ca-Ba-Cu-0 superconducting system was carried out using the flux growth method. The crystal structure and superconducting properties of mm-sized single crystals were measured using X-ray diffraction and the SQUID magnetometer. The grown crystals are typically in platelet form ; 0.5 to 2.5 mm wide and about 0.2 mm thick. The crystals exhibit a mirror-like surface and some growth steps can be observed through a scanning electron microscope. The superconducting onset transition temperature of 108K to 118K was determined by DC magnetic susceptibility obtained for as-grown single crystals. The transition temperature has a tendency to increase as the amount of CaO-CuO in the starting nominal composition rises. According to the X-ray diffraction measurement, the c-axis of the grown crystals is 35.8Å for those with Tc of 118K, and 29.3Å for those with Tc of 108K.
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© 1989 Springer Japan
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Takei, H., Kotani, T., Kaneko, T., Tada, K. (1989). Superconductivity on Single Crystals of Tl-Ca-Ba-Cu-O System. In: Kitazawa, K., Ishiguro, T. (eds) Advances in Superconductivity. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68084-0_37
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DOI: https://doi.org/10.1007/978-4-431-68084-0_37
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-68086-4
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