UBC Theses and Dissertations
Growth of TI₂Ba₂CuO₆[sub ±δ] single crystals by the self-flux method Peets, Darren
Crystals of the overdoped cuprate superconductor TI₂Ba₂CuO₆[sub ±δ], with T[sub c]'s ranging from 5K to 90K, have been grown by a copper-rich self-flux method and characterized by X-ray Diffraction and with a SQUID magnetometer. The as-grown T[sub c]’s were several Kelvin wide, the crystals studied were found to be multi-domain, and the c-axis lattice parameter was found to be 23.143(2) Å for a T[sub c] = 5K crystal. The successful growth of TI₂Ba₂CuO₆[sub ±δ] hinged on the ability to exclude carbon while containing the thallium oxides. This study of TI₂Ba₂CuO₆[sub ±δ], while still in its infancy, has the potential to reveal a great deal about the cuprate superconductors.
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