Magnetic and dielectric properties of Fe3BO6 nanoplates prepared through self-combustion method
In the present investigation, a facile synthesis method is explored involving a self-combustion of a solid precursor mixture of iron oxide Fe2O3 and boric acid (H3BO3) using camphor (C10H16O) as fuel in ambient air in order to form a single phase Fe3BO6 crystallites. X-ray diffraction (XRD), Field e...
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| Format: | Article |
| Language: | English |
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World Scientific Publishing
2017-12-01
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| Series: | Journal of Advanced Dielectrics |
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| Online Access: | http://www.worldscientific.com/doi/pdf/10.1142/S2010135X17500436 |
| _version_ | 1811228658350686208 |
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| author | Kalpana Kumari |
| author_facet | Kalpana Kumari |
| author_sort | Kalpana Kumari |
| collection | DOAJ |
| description | In the present investigation, a facile synthesis method is explored involving a self-combustion of a solid precursor mixture of iron oxide Fe2O3 and boric acid (H3BO3) using camphor (C10H16O) as fuel in ambient air in order to form a single phase Fe3BO6 crystallites. X-ray diffraction (XRD), Field emission electron microscopy (FESEM), magnetic, and dielectric properties of as prepared sample are studied. From XRD pattern, a single phase compound is observed with an orthorhombic crystal structure (Pnma space group), with average crystallite size of 42nm. A reasonably uniform size distribution of the plates and self-assemblies is retained in the sample. A magnetic transition is observed in dielectric permittivity (at ∼445K) and power loss (at ∼435K) when plotted against temperature. A weak peak occurs near 330K due to the charge reordering in the sample. For temperatures above the transition temperature, a sharp increase of the dielectric loss is observed which occurs due to the presence of thermally activated charge carriers. A canted antiferromagnetic Fe3+ ordering in a Fe3BO6 lattice with a localized charge surface layer is an apparent source of exhibiting a ferroelectric feature in this unique example of a centrosymmetric compound. An induced spin current over the Fe sites thus could give rise to a polarization hysteresis loop. Due to the presence of both ferromagnetic as well as polarization ordering, Fe3BO6 behaves like a single phase multiferroic ceramics. |
| first_indexed | 2024-04-12T10:01:33Z |
| format | Article |
| id | doaj.art-2359ce60215e47dc80a1e313e70e726c |
| institution | Directory Open Access Journal |
| issn | 2010-135X 2010-1368 |
| language | English |
| last_indexed | 2024-04-12T10:01:33Z |
| publishDate | 2017-12-01 |
| publisher | World Scientific Publishing |
| record_format | Article |
| series | Journal of Advanced Dielectrics |
| spelling | doaj.art-2359ce60215e47dc80a1e313e70e726c2022-12-22T03:37:33ZengWorld Scientific PublishingJournal of Advanced Dielectrics2010-135X2010-13682017-12-01761750043-11750043-710.1142/S2010135X1750043610.1142/S2010135X17500436Magnetic and dielectric properties of Fe3BO6 nanoplates prepared through self-combustion methodKalpana Kumari0Department of Metallurgical and Materials Engineering, National Institute of Technology, Karnataka, Surathkal, Mangalore-575025, IndiaIn the present investigation, a facile synthesis method is explored involving a self-combustion of a solid precursor mixture of iron oxide Fe2O3 and boric acid (H3BO3) using camphor (C10H16O) as fuel in ambient air in order to form a single phase Fe3BO6 crystallites. X-ray diffraction (XRD), Field emission electron microscopy (FESEM), magnetic, and dielectric properties of as prepared sample are studied. From XRD pattern, a single phase compound is observed with an orthorhombic crystal structure (Pnma space group), with average crystallite size of 42nm. A reasonably uniform size distribution of the plates and self-assemblies is retained in the sample. A magnetic transition is observed in dielectric permittivity (at ∼445K) and power loss (at ∼435K) when plotted against temperature. A weak peak occurs near 330K due to the charge reordering in the sample. For temperatures above the transition temperature, a sharp increase of the dielectric loss is observed which occurs due to the presence of thermally activated charge carriers. A canted antiferromagnetic Fe3+ ordering in a Fe3BO6 lattice with a localized charge surface layer is an apparent source of exhibiting a ferroelectric feature in this unique example of a centrosymmetric compound. An induced spin current over the Fe sites thus could give rise to a polarization hysteresis loop. Due to the presence of both ferromagnetic as well as polarization ordering, Fe3BO6 behaves like a single phase multiferroic ceramics.http://www.worldscientific.com/doi/pdf/10.1142/S2010135X17500436Self-combustionnanoplatesmagnetic propertiesdielectric propertiespolarizationcentrosymmetric |
| spellingShingle | Kalpana Kumari Magnetic and dielectric properties of Fe3BO6 nanoplates prepared through self-combustion method Journal of Advanced Dielectrics Self-combustion nanoplates magnetic properties dielectric properties polarization centrosymmetric |
| title | Magnetic and dielectric properties of Fe3BO6 nanoplates prepared through self-combustion method |
| title_full | Magnetic and dielectric properties of Fe3BO6 nanoplates prepared through self-combustion method |
| title_fullStr | Magnetic and dielectric properties of Fe3BO6 nanoplates prepared through self-combustion method |
| title_full_unstemmed | Magnetic and dielectric properties of Fe3BO6 nanoplates prepared through self-combustion method |
| title_short | Magnetic and dielectric properties of Fe3BO6 nanoplates prepared through self-combustion method |
| title_sort | magnetic and dielectric properties of fe3bo6 nanoplates prepared through self combustion method |
| topic | Self-combustion nanoplates magnetic properties dielectric properties polarization centrosymmetric |
| url | http://www.worldscientific.com/doi/pdf/10.1142/S2010135X17500436 |
| work_keys_str_mv | AT kalpanakumari magneticanddielectricpropertiesoffe3bo6nanoplatespreparedthroughselfcombustionmethod |