The Inverse Perovskite (Ca2EuNx)Sn: A Rare Example for a Homogeneously Mixed-Valent Compound?

The cubic Perovskite (Ca2EuN0.75)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 Mössbauer spectroscopy. Magnetic susceptibility measurements as well as Mössbauer and...

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Veröffentlicht in:	ZAAC - Journal of Inorganic and General Chemistry 2011-06, Vol.637 (7-8), p.977-982
Hauptverfasser:	Gäbler, Frank, Bräunling, Daniel, Schnelle, Walter, Schellenberg, Inga, Pöttgen, Rainer, Niewa, Rainer
Format:	Artikel
Sprache:	eng
Schlagworte:	Inverse Perovskite Mixed-valent europium Mössbauer spectroscopy Nitrides X-ray absorption spectroscopy
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	The cubic Perovskite (Ca2EuN0.75)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 Mössbauer spectroscopy. Magnetic susceptibility measurements as well as Mössbauer 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.
ISSN:	0044-2313 1521-3749
DOI:	10.1002/zaac.201000416