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1981 (1)
1980 (1)
1Author    Erwin Riedel, Hümeyra Anik, Till DützmannRequires cookie*
 Title    Verteilung und Valenz der Kationen in Spinellsystemen mit Eisen und Vanadium, III Röntgenographische und Mößbauer-spektroskopische Untersuchung des Spinellsystems ZnFeV04-Fe304 Distribution and Valence of the Cations in Spinel Systems with Iron and Vanadium, III X-ray Investigation and Mössbauer Spectra of the Spinel System ZnFeV04-Fe304  
 Abstract    The spinel system Zni_zFe2:[Fei+2;Vi_I]04 has been prepared by heating mixtures of ZnFeV(>4 and Fe3Ü4 at 1000 °C. The lattice constants, the oxygen parameters and the Mössbauer parameters show that a transition from a nearly normal to an inverse distribu-tion of Fe(II) and Fe(III) exists. 
  Reference    Z. Naturforsch. 36b, 1228—1233 (1981); eingegangen am 4. Mai 1981 
  Published    1981 
  Keywords    Zinc-Iron-Vanadium Spineis, Mössbauer Spectroscopy, Valence Distribution, Charge Hopping 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-1228.pdf 
 Identifier    ZNB-1981-36b-1228 
 Volume    36 
2Author    Erwin Riedel, Norbert PfeilRequires cookie*
 Title    Verteilung und Valenz der Kationen in Spinellsystemen mit Eisen und Vanadium, II Röntgenographische Untersuchung, Seebeck Koeffizienten, Mößbauer-und IR-Spektren der Mischkristallreihen Fe2V04-ZnV204 und Fe2V04-ZnFe204 Distribution and Valence of the Cations in Spinel Systems with Iron and Vanadium, II X-ray Investigation, Seebeck Coefficients, Mössbauer and IR Spectra of the Solid Solutions Fe2V04-ZnV204 and Fe2V04-ZnFe204  
 Abstract    The spinel series Fe2V04-ZnV204 and Fe2V04-ZnFe204 have been prepared and investigated. The lattice constants and Mössbauer spectra lead to a distribution of cations which proves that Fe2V04 is a partially inverse spinel with Fe(II) and Fe(III) on the tetrahedral site. The Seebeck effect is interpreted with a model of both tetrahedral and octahedral conduction based on charge hopping. 
  Reference    Z. Naturforsch. 35b, 1261—1267 (1980); eingegangen am 2. Juni 1980 
  Published    1980 
  Keywords    Zinc-Iron-Vanadium Spineis, Mössbauer Spectroscopy, Seebeck Effect, Charge Hopping, Cation Distribution 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-1261.pdf 
 Identifier    ZNB-1980-35b-1261 
 Volume    35