| [1] | Park C, Snyder R L. Structures of High-Temperature Cuprate Superconductors [J]. J Am Ceramic Society, 1995, 78(12): 3171-3194. |
| [2] | Conradson S D, Raistrick I D. The Axial Oxygen Atom and Superconductivity in YBa2Cu3O7 [J]. Science, 1989, 243: 1340-1343. |
| [3] | Mller K A. On the Oxygen Isotope Effect and Apex Anharmonicity in High-Tc Cuprates [J]. Z Phys B: Con Mat, 1990, 80(2): 193-201. |
| [4] | Ohta Y, Tohyama T, Maekawa S. Apex Oxygen and Critical Temperature in Copper Oxide Superconductors: Universal Correlation with the Stability of Local Singlets [J]. Phys Rev B, 1991, 43(4): 2968-2982. |
| [5] | Huang J, Hoffmann R D, Sleight A W. New Layered Copper Oxides Containing Double CuO2 Sheets: Ca3Cu2O4Cl2 and Ca3Cu2O4Br2 [J]. Mat Res Bull, 1990, 25: 1085-1090. |
| [6] | Mattheiss L F. Electronic Properties of Ca2CuO2Cl2 and Ca2CuO2Br2 [J]. Phys Rev B, 1990, 42(1): 354-358. |
| [7] | Vakni D, Sinha S K. Antiferromagnetism in Sr2CuO2Cl2 [J]. Phys Rev B, 1990, 41(4): 1926-1933. |
| [8] | Jin C Q, Wu X J, Laffez P, et al. Superconductivity at 80 K in (Sr, Ca)3Cu2O4+Cl2-y [J]. Nature, 1995, 375: 301-303. |
| [9] | Liu Q Q, Qin X M, Y Yu, et al. High Pressure Synthesis of a New Superconductor Sr2CuO2+Cl2-y Induced by Apical Oxygen Doping [J]. Physica C, 2005, 420: 23-29. |
| [10] | Wu X J, Jin C Q, Laffez P, et al. New 02(n-1)n Homologous Series Consisting of Superconducting Copper Oxyhalide of the Sr-Ca-Cu-O-Cl System [J]. Physica C, 1996, 258: 143-152. |
| [11] | Tatsuki T, Adachi S, Tamura T, et al. High-Pressure Synthesis and Superconductivity of Sr-Ca-Cu-O-Cl Compounds with 0212-Type and 0223-Type Structure [J]. Physica C, 1998, 306: 67-74. |