| Title of Article |
Optical and magnetic properties of La1−xGaxFeO3 ืnanoparticles synthesized by polymerization complex method |
| Date of Acceptance |
7 February 2016 |
| Journal |
| Title of Journal |
Applied Surface Science |
| Standard |
SCOPUS |
| Institute of Journal |
2016 Elsevier B.V. All rights reserved |
| ISBN/ISSN |
Doi.org/10.1016/j.apsusc.2016.02.083 |
| Volume |
2016 |
| Issue |
380 |
| Month |
September |
| Year of Publication |
2016 |
| Page |
52-59 |
| Abstract |
La1−xGaxFeO3 (x = 0.0, 0.1, 0.2, 0.3 and 0.4) nanoparticles were synthesized by polymerization complex method. X-ray diffraction (XRD) results reveal a pure orthorhombic phase structure. Increasing of Ga content, resulting in the decrease of average crystallite sizes calculated by XRD from 58.4 ± 5.9 to 13.4 ± 4.3 nm and the average particle sizes estimated by transmission electron microscope (TEM) images from 70.2 ± 4.5 to 21.4 ± 8.5 nm. The optical band gaps determined by UV–vis spectra showed a redshift from 2.145 to 1.954 eV that originates from surface effect caused by Ga substitution. The magnetic properties were investigated using a vibrating sample magnetometer (VSM). The room temperature
hysteresis loops of La1–xGaxFeO3 nanopowders indicate the antiferromagnetic behavior of pure sample and all doped samples of ferromagnetic behavior with the enhancement of coercive field (Hc), remanence (Mr) and magnetization (M) due to the more disordering spins induced at the surface of particle. It is evident from field cool (FC) measurement of La0.6Ga0.4FeO3 sample that the Curie temperature (Tc) is above 350 K. |
| Keyword |
La1−xGaxFeO3, Optical property, Magnetic property, Polymerization complex method |
| Author |
|
| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
นานาชาติ |
| citation |
true |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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