Influence of Fe doped manganite on critical behavior of La0.6Nd0.1(Ca,Sr)0.3Mn1−xFexO3.
In: Physica B, Jg. 458 (2015-02-01), S. 132-137
Online
academicJournal
Zugriff:
The samples of manganese perovskite La 0.6 Nd 0.1 (Sr,Ca) 0.3 Mn 1− x Fe x O 3 ( x =0.0, 0.05 and 0.1) were prepared by a solid–solid method and all of them achieved an orthorhombic perovskite structure, revealed by X-ray diffraction. Investigations into temperature and magnetic-field dependences of magnetization indicated a gradual decrease of the ferromagnetic–paramagnetic transition temperature ( T C ) from 326 to 296 K with increasing Fe-doping. The experimental results revealed that all the samples were undergone a second-order phase transition. The critical properties near ferromagnetic–paramagnetic phase transition temperature have been analyzed from data of static magnetization measurements for the samples, using various techniques such as a modified Arrott plot (MAP), Kouvel–Fisher (KF) method and critical isotherm (CI) analysis. Critical exponents for x =0.0 and x =0.05 samples are close to the theoretical prediction from the 3D-Heisenberg and for x =0.1sample the values obtained for the critical exponents are close to those predicted by the tri-critical mean-field. [ABSTRACT FROM AUTHOR]
Titel: |
Influence of Fe doped manganite on critical behavior of La0.6Nd0.1(Ca,Sr)0.3Mn1−xFexO3.
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Autor/in / Beteiligte Person: | Dhahri, Ja. ; Dhahri, A. ; Oummezzine, M. ; Hlil, E.K. |
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Zeitschrift: | Physica B, Jg. 458 (2015-02-01), S. 132-137 |
Veröffentlichung: | 2015 |
Medientyp: | academicJournal |
ISSN: | 0921-4526 (print) |
DOI: | 10.1016/j.physb.2014.11.022 |
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