| | 1 | Author
| M. Windhaus, B. D. Mosel, W. Müller-Warmuth | Requires cookie* | | | Title
| Mössbauer Studies of Fe 2+ in Iron Langbeinites and other Crystals with Langbeinite Structure  | | | | Abstract
| 57 Fe Mössbauer spectra have been measured at various temperatures between 4.2 K and 300 K for iron langbeinites A 2 Fe 2^04)3 with A = K, NH 4 , Rb, T1 and magnesium, manganese and cadmium lang-beinites doped with Fe" + . The spectra revealed several contributions whose isomer shifts and quadru-pole splittings have been obtained by fitting program routines. For the high-temperature cubic phases two crystallographically non-equivalent iron sites have been identified, characteristic of Fe 2+ in the high-spin state. Abrupt changes of the quadrupole couplings indicated phase transitions; in some cases, the spectra have also revealed several sites for Fe 2+ in low temperature phases. From the temperature de-pendences, phase transition temperatures, crystal field splittings and Debye temperatures have been de-rived. | | | |
Reference
| Z. Naturforsch. 53a, 27—37 (1998); received January 21 1998 | | | |
Published
| 1998 | | | |
Keywords
| 57 Fe Mössbauer Spectroscopy, Inorganic Crystals, Structure, Phase Transitions | | | |
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| default:Reihe_A/53/ZNA-1998-53a-0027.pdf | | | | Identifier
| ZNA-1998-53a-0027 | | | | Volume
| 53 | |
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