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57Fe Mössbauer study of La0.67Ca0.33Mn1 − x Fe x O3 CMR system.
- Source :
-
Hyperfine Interactions . 2008, Vol. 187 Issue 1-3, p109-115. 7p. 1 Chart, 4 Graphs. - Publication Year :
- 2008
-
Abstract
- Fe-doped polycrystalline samples La0.67Ca0.33Fe x Mn1 − x O3 ( x = 0%, 5%, 7.5%, 10% and 15%) are studied employing 57Fe Mössbauer effect measurements. The room temperature Mössbauer measurements of all the samples indicate the presence of Fe + 3 state and it is observed that the quadrupole splitting remains constant up to 10% Fe doping and increases with 15% Fe doping. Resistivity data shows increasing insulating behaviour with Fe doping and insulating region follows Efros–Shlovskii variable range hoping model. [ABSTRACT FROM AUTHOR]
- Subjects :
- *IRON ions
*MOSSBAUER effect
*POLYCRYSTALS
*TEMPERATURE
*THERMAL insulation
Subjects
Details
- Language :
- English
- ISSN :
- 03043843
- Volume :
- 187
- Issue :
- 1-3
- Database :
- Academic Search Index
- Journal :
- Hyperfine Interactions
- Publication Type :
- Academic Journal
- Accession number :
- 35289171
- Full Text :
- https://doi.org/10.1007/s10751-008-9890-7