CaCu3Pt4O12: The First Perovskite with the B Site Fully Occupied by Pt4+

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• 作者：Ikuya Yamada ; Yuka Takahashi ; Kenya Ohgushi ; Norimasa Nishiyama ; Ryoji Takahashi ; Kohei Wada ; Takehiro Kunimoto ; Hiroaki Ohfuji ; Yohei Kojima ; Toru Inoue ; Tetsuo Irifune
• 刊名：Inorganic Chemistry
• 出版年：2010
• 出版时间：August 2, 2010
• 年：2010
• 卷：49
• 期：15
• 页码：6778-6780
• 全文大小：659K
• 年卷期：v.49,no.15(August 2, 2010)
• ISSN：1520-510X

文摘

A novel A-site ordered perovskite CaCu₃Pt₄O₁₂ was synthesized under high pressure and high temperature of 12 GPa and 1250 °C. CaCu₃Pt₄O₁₂ is the first perovskite in which the B site is fully occupied by Pt⁴⁺. The crystal structure refinement based on the synchrotron powder X-ray diffraction data shows that CaCu₃Pt₄O₁₂ crystallizes in the space group Im (cubic) with a lattice constant of a = 7.48946(10) Å. The magnetic susceptibility data show the antiferromagnetic transition at T_N = 40 K, which is attributed to the magnetic ordering of Cu²⁺ spins with S = ¹/₂.