Structural and magnetic properties of La23D13MnO3 (D = Ca, Sr, Ba) manganites prepared by ball milling
Joint Authors
Bsoul, Ibrahim
Mahmud, Sami
Badran, Badran
Source
Issue
Vol. 12, Issue 2 (31 Aug. 2019), pp.141-152, 12 p.
Publisher
Yarmouk University Deanship of Research and Graduate Studies
Publication Date
2019-08-31
Country of Publication
Jordan
No. of Pages
12
Main Subjects
Abstract EN
In this research, we report on the synthesis and characterization of La0.67Ca0.33MnO3 (LCMO), La0.67Ba0.33MnO3 (LBMO) and La0.67Sr0.33MnO3 (LSMO) perovskites.
Precursor powders for the perovskite samples were prepared using ball milling technique.
The resulting powder was pressed into disks which were subsequently sintered at 1000º C for 2h.
The structural characteristics of the prepared samples were investigated using X-ray diffraction (XRD) and scanning electron microscope (SEM), while the magnetic properties were investigated using vibrating sample magnetometry (VSM).
XRD pattern of LCMO sample revealed a pure perovskite phase with Pnma space group, while the pattern of LSMO sample revealed a pure perovskite with ?3 ? ? space group.
XRD pattern of LBMO sample, however, demonstrated the presence of a major perovskite phase with ?3 ? ? symmetry, together with a secondary BaMnO3 phase.
This secondary phase disappeared upon sintering LBMO at a higher temperature of 1100º C.
Isothermal magnetic measurements and thermomagnetic curves revealed that LCMO was paramagnetic at room temperature.
However, LSMO exhibited soft ferromagnetic behavior at room temperature, with Tc = 380 K and Ms = 50.9 emu/g.
Also, LBMO sample sintered at 1000º C exhibited soft ferromagnetic behavior at room temperature, with Curie temperature Tc = 343 K and a rather low saturation magnetization of Ms = 30.7 emu/g.
The higher sintering temperature of LBMO compound resulted in a significant increase of the saturation magnetization to 50.8 emu/g for the sample sintered at 1100º C
American Psychological Association (APA)
Mahmud, Sami& Badran, Badran& Bsoul, Ibrahim. 2019. Structural and magnetic properties of La23D13MnO3 (D = Ca, Sr, Ba) manganites prepared by ball milling. Jordan Journal of Physics،Vol. 12, no. 2, pp.141-152.
https://search.emarefa.net/detail/BIM-1246496
Modern Language Association (MLA)
Mahmud, Sami…[et al.]. Structural and magnetic properties of La23D13MnO3 (D = Ca, Sr, Ba) manganites prepared by ball milling. Jordan Journal of Physics Vol. 12, no. 2 (2019), pp.141-152.
https://search.emarefa.net/detail/BIM-1246496
American Medical Association (AMA)
Mahmud, Sami& Badran, Badran& Bsoul, Ibrahim. Structural and magnetic properties of La23D13MnO3 (D = Ca, Sr, Ba) manganites prepared by ball milling. Jordan Journal of Physics. 2019. Vol. 12, no. 2, pp.141-152.
https://search.emarefa.net/detail/BIM-1246496
Data Type
Journal Articles
Language
English
Notes
Record ID
BIM-1246496