The n=2 Member of the New Layered Struct
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N. Floros; C. Michel; M. Hervieu; B. Raveau
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Article
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2002
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Elsevier Science
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English
β 426 KB
A new manganese oxide Ba 7 Ca 2 Mn 5 O 20 , with an original structure derived from the 21 L hexagonal perovskite, has been synthesized and studied by XRPD and HREM. This rhombohedral phase (R % 3m), with a ΒΌ 5:8207Γ°2Γ ( A and c ΒΌ 51:359Γ°1Γ ( A, consists of [BaO 3 ] (h and c) layers and [BaO 2 ] (c