摘要
Besides the synthesis of Tl-based high-T<sub>c</sub> superconductors with double Tl-O layers, such as Tl<sub>2</sub>Ba<sub>2</sub>CuO<sub>6</sub>（Tl2201）, Tl<sub>2</sub>Ba<sub>2</sub>Ca<sub>C</sub>u<sub>2</sub>O<sub>8</sub>（Tl2212） and Tl<sub>2</sub>Ba<sub>2</sub>Ca<sub>2</sub>Cu<sub>3</sub>O<sub>10</sub>（Tl2223）, the single-TlO layer series Tl（Ba, Sr）<sub>2</sub>Ca<sub>n-1</sub>Cu<sub>n</sub>O<sub>2n+3</sub> （n=1, 2, 3,…） were synthesized as well. There are two Cu sites which are not crystallographically equivalent in Tl-based
基金
National Center of Research and Development on Superconductivity of China.
