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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >The inverse perovskite (Ca_2EuN_x)Sn: A rare example for a homogeneously mixed-valent compound?
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The inverse perovskite (Ca_2EuN_x)Sn: A rare example for a homogeneously mixed-valent compound?

机译:反钙钛矿(Ca_2EuN_x)Sn:均匀混合价化合物的稀有例子吗?

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摘要

The cubic Perovskite (Ca_2EuN_(0.75))Sn was synthesized in a solid state reaction from EuN, Ca, and Sn. Nitrogen deficiency and Ca/Eu disorder is in agreement with results from chemical analysis, X-ray diffraction, and M?ssbauer spectroscopy. Magnetic susceptibility measurements as well as M?ssbauer and X-ray absorption spectroscopy indicate a mixed-valent situation with di- and trivalent europium, apparently situated together with calcium on one crystallographic site. According to electrical resistivity measurements the title compound represents a heavily doped semiconductor.
机译:在固相反应中由EuN,Ca和Sn合成了立方钙钛矿(Ca_2EuN_(0.75))Sn。氮缺乏和Ca / Eu紊乱与化学分析,X射线衍射和Msssbauer光谱的结果一致。磁化率测量以及Mssbauer和X射线吸收光谱表明,二价和三价euro呈混合价态,显然与钙一起位于一个晶体学位置。根据电阻率测量,标题化合物表示重掺杂半导体。

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