Role of Gallium Doping in Structural, Magnetic, and Dielectric Properties of the Compounds LaBiSrMnGaO ( x = 0 and 0.06).
In: Journal of Superconductivity & Novel Magnetism, Jg. 30 (2017-10-01), Heft 10, S. 2763-2770
Online
academicJournal
Zugriff:
In this paper, we investigated the structural, magnetic, and dielectric properties of the compounds La BiSrMnGaO ( x = 0 and 0.06) synthesized with the ceramic method. The structural studies of the compounds showed their indexation in the rhombohedral structure with the R-3C space group. The M( T) investigations under an applied magnetic field of 0.05 T presented a single ferromagnetic-paramagnetic phase transition around the Curie temperature T . Gallium doping with non-magnetic coupling between Ga −O −Gareduces the Curie temperature to lower values: T = 360 K for x = 0 and T = 350 K for x = 0.06. The impedance plot at room temperature ( T = 330 K) appeared as uncompleted semicircular arcs off-centered on the real axis, indicating that the electrical conduction arises from the grain boundaries. The electrical equivalent circuit has been proposed as a parallel combination of grain boundary resistance R and constant phase element impedance (Z) to explain the impedance results. The study of the conductivity with respect to frequency at T = 303 K displayed the reduction of the electron hopping (coulombic interactions) with gallium doping. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Superconductivity & Novel Magnetism is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Titel: |
Role of Gallium Doping in Structural, Magnetic, and Dielectric Properties of the Compounds LaBiSrMnGaO ( x = 0 and 0.06).
|
---|---|
Autor/in / Beteiligte Person: | Baazaoui, M. ; Hamdaoui, Nejeh ; Laouyenne, M. ; Cheikhrouhou-Koubaa, W. ; Beji, Lotfi ; Oumezzine, M. |
Link: | |
Zeitschrift: | Journal of Superconductivity & Novel Magnetism, Jg. 30 (2017-10-01), Heft 10, S. 2763-2770 |
Veröffentlichung: | 2017 |
Medientyp: | academicJournal |
ISSN: | 1557-1939 (print) |
DOI: | 10.1007/s10948-017-4111-8 |
Schlagwort: |
|
Sonstiges: |
|