Synthesis,Structure,and Properties of Ba_5Ho_(1-x)Mn_4O_(15-y)
【摘要】:正Recently,considerable interest has been focused on doped BaMnO_3 compounds with hexagonal perovskite related structures,because of their variant structures and relative high dielectric permittivity. Here,we obtained a new compound Ba_5Ho_(1-x)Mn_4O_(15-y) with perovskite structure.In the structure,BaO_3 is a close-packing layer that stacks in certain sequence(either cubic or hexagonal) along c axis,and the Ho ions occupy the corner-sharing octahedral site and the Mn ions are in the face-sharing octahedral site.The
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欧洲汽车共享项目“momo”主要协调人 Glotz-Richter;“共享汽车”来中国[N];21世纪经济报道;2010年 |
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