| | 1 | Author
| H. D. Lutz, A. Pfitzner, W. Schmidt, E. Riedel, D. Prick | Requires cookie* | | | Title
|  | | | | Abstract
| Mössbauer-Investigation of the Li2FeCl4 Polymorphs The room temperature Mössbauer spectrum of the high-temperature polymorph of Li2FeCl4 is in agreement with an inverse spinel structure and a disordered distribution of the cations on the octahedral sites. Mössbauer spectra of the orthorhombic room-temperature modification of Li2FeCl4 correspond to a 1:1 ordering of Li + -and Fe2 + -ions on the octahedral sites. M ö ß b a u e r -U n te r s u c h u n g d e r M o d if ik a tio n e n von L i 2F e C l4 | | | |
Reference
| Z. Naturforsch. 44a, 756 (1989); eingegangen am 21. Juli 1989 | | | |
Published
| 1989 | | | |
Keywords
| Lithium-iron-chloride, Mössbauer-spectroscopy, Cation distribution | | | |
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| default:Reihe_A/44/ZNA-1989-44a-0756.pdf | | | | Identifier
| ZNA-1989-44a-0756 | | | | Volume
| 44 | |
| 4 | Author
| Sima Rabbani, Erwin Riedel | Requires cookie* | | | Title
| Verteilung und Valenz der Kationen im Spinellsystem ZnFeGa04-F e 2G a 0 4 Distribution and Valence of the Cations in the Spinel System Z n F eG a 0 4-F e 2G a 0 4 | | | | Abstract
| For the spinel system Zn1_A ;F e^ G a/l(Fe1+/lG a1_ /l)04 the index X has been determined by X-ray measurements: X = 0 in the region 0 < x < 0,35; the increase of X to 0,62 within 0,35 < x < 1 is nearly linear. The distribution of Fe2+ and Fe3+ ions over the lattice sites has been derived from lattice constants and ionic distances, and also by Mössbauer spectroscopy. In the spinels with x < 0,3 the tetrahedral sites are preferably occupied by Fe2+ ions, for x > 0,5 Fe3+ ions dominate. At x = 0,4 the occupation of the lattice sites by iron ions is statistical, the high temperature Mössbauer spectrum shows a single line only. All spinels are n-type hopping conductors mainly conducting via the octahedral sites. | | | |
Reference
| (Z. Naturforsch. 51b, 47—51 [1996]; eingegangen am 30. Juni 1995) | | | |
Published
| 1996 | | | |
Keywords
| Iron Gallium Spineis, Cation Distribution, Valence Distribution, Mössbauer Spectra, Seebeck Coefficients | | | |
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| default:Reihe_B/51/ZNB-1996-51b-0047.pdf | | | | Identifier
| ZNB-1996-51b-0047 | | | | Volume
| 51 | |
| 5 | Author
| Erwin Riedel, Norbert Pfeil | Requires 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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| default:Reihe_B/35/ZNB-1980-35b-1261.pdf | | | | Identifier
| ZNB-1980-35b-1261 | | | | Volume
| 35 | |
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