Preparation and investigation of magnetic properties of pure MnFe2O4 ferrite nanoparticles and those dispersed in SiO2 matrix
In this study, the pure manganese ferrite nanoparticles and those dispersed in silica were prepared by the sol-gel method. The average size of particles, which is estimated from Scherrer formula, is about 6 nm for pure sample and 5 nm for silica dispersed sample. The particles size values are in agr...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Isfahan University of Technology
2013-03-01
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| Series: | Iranian Journal of Physics Research |
| Subjects: | |
| Online Access: | http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-607&slc_lang=en&sid=1 |
| _version_ | 1828237523639336960 |
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| author | H Salamati P Kameli SE Aalaye H Arabi |
| author_facet | H Salamati P Kameli SE Aalaye H Arabi |
| author_sort | H Salamati |
| collection | DOAJ |
| description | In this study, the pure manganese ferrite nanoparticles and those dispersed in silica were prepared by the sol-gel method. The average size of particles, which is estimated from Scherrer formula, is about 6 nm for pure sample and 5 nm for silica dispersed sample. The particles size values are in agreement with the TEM results. Results of magnetization measurements showed that these samples have zero coercivity and are superparamagnet at room temperature. Using the results of ac magnetic susceptibility measurements and analysis by different models, superparamagnetic behavior of magnetic nanoparticles was studied. The behavior of pure sample is interacting superparamagnet and in the silica dispersed sample, the interaction between nanoparticles decreases and the behavior of this sample is non-interacting superparamagnet. It seems that by dispersing the nanoparticles in silica, the distance of particles increases and interaction between ferrite nanoparticles decreases. |
| first_indexed | 2024-04-12T20:48:41Z |
| format | Article |
| id | doaj.art-eae7e4811c8648bcb1eed95efa247000 |
| institution | Directory Open Access Journal |
| issn | 1682-6957 |
| language | English |
| last_indexed | 2024-04-12T20:48:41Z |
| publishDate | 2013-03-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Iranian Journal of Physics Research |
| spelling | doaj.art-eae7e4811c8648bcb1eed95efa2470002022-12-22T03:17:11ZengIsfahan University of TechnologyIranian Journal of Physics Research1682-69572013-03-01124361369Preparation and investigation of magnetic properties of pure MnFe2O4 ferrite nanoparticles and those dispersed in SiO2 matrixH SalamatiP KameliSE AalayeH ArabiIn this study, the pure manganese ferrite nanoparticles and those dispersed in silica were prepared by the sol-gel method. The average size of particles, which is estimated from Scherrer formula, is about 6 nm for pure sample and 5 nm for silica dispersed sample. The particles size values are in agreement with the TEM results. Results of magnetization measurements showed that these samples have zero coercivity and are superparamagnet at room temperature. Using the results of ac magnetic susceptibility measurements and analysis by different models, superparamagnetic behavior of magnetic nanoparticles was studied. The behavior of pure sample is interacting superparamagnet and in the silica dispersed sample, the interaction between nanoparticles decreases and the behavior of this sample is non-interacting superparamagnet. It seems that by dispersing the nanoparticles in silica, the distance of particles increases and interaction between ferrite nanoparticles decreases.http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-607&slc_lang=en&sid=1manganese ferritenanoparticlessuperparamagneticinteraction |
| spellingShingle | H Salamati P Kameli SE Aalaye H Arabi Preparation and investigation of magnetic properties of pure MnFe2O4 ferrite nanoparticles and those dispersed in SiO2 matrix Iranian Journal of Physics Research manganese ferritenanoparticles superparamagnetic interaction |
| title | Preparation and investigation of magnetic properties of pure MnFe2O4 ferrite nanoparticles and those dispersed in SiO2 matrix |
| title_full | Preparation and investigation of magnetic properties of pure MnFe2O4 ferrite nanoparticles and those dispersed in SiO2 matrix |
| title_fullStr | Preparation and investigation of magnetic properties of pure MnFe2O4 ferrite nanoparticles and those dispersed in SiO2 matrix |
| title_full_unstemmed | Preparation and investigation of magnetic properties of pure MnFe2O4 ferrite nanoparticles and those dispersed in SiO2 matrix |
| title_short | Preparation and investigation of magnetic properties of pure MnFe2O4 ferrite nanoparticles and those dispersed in SiO2 matrix |
| title_sort | preparation and investigation of magnetic properties of pure mnfe2o4 ferrite nanoparticles and those dispersed in sio2 matrix |
| topic | manganese ferritenanoparticles superparamagnetic interaction |
| url | http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-607&slc_lang=en&sid=1 |
| work_keys_str_mv | AT hsalamati preparationandinvestigationofmagneticpropertiesofpuremnfe2o4ferritenanoparticlesandthosedispersedinsio2matrix AT pkameli preparationandinvestigationofmagneticpropertiesofpuremnfe2o4ferritenanoparticlesandthosedispersedinsio2matrix AT seaalaye preparationandinvestigationofmagneticpropertiesofpuremnfe2o4ferritenanoparticlesandthosedispersedinsio2matrix AT harabi preparationandinvestigationofmagneticpropertiesofpuremnfe2o4ferritenanoparticlesandthosedispersedinsio2matrix |