Exploring bismuth-substituted yttrium iron garnet: Insights into structural, optical, and dielectric characteristics
Magnetic garnets, a diverse group of magnetic insulating materials, have been the subject of extensive research for decades, owing to their versatility and potential for a wide range of applications. In this study, we synthesized Bismuth-Substituted Yttrium Iron Garnet (BiY2Fe5O12: BiYIG) using the...
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Elsevier
2024-12-01
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| author | Ravindra Hazam Manjushree Maity Sachin Verma Rajeev Singh Biswanath Bhoi |
| author_facet | Ravindra Hazam Manjushree Maity Sachin Verma Rajeev Singh Biswanath Bhoi |
| author_sort | Ravindra Hazam |
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| description | Magnetic garnets, a diverse group of magnetic insulating materials, have been the subject of extensive research for decades, owing to their versatility and potential for a wide range of applications. In this study, we synthesized Bismuth-Substituted Yttrium Iron Garnet (BiY2Fe5O12: BiYIG) using the solid-state reaction method to explore its structural, optical, and dielectric characteristics. X-ray diffraction analysis revealed the attainment of a pure cubic garnet phase in BiYIG, with a lattice parameter of 12.444 Å. Using UV–visible spectroscopy, we determined that the optical band gap of BiYIG is 2.2 eV, indicating n-type semiconductor behavior. We conducted a thorough investigation of the dielectric properties, examining capacitance, dielectric constant, dielectric loss, conductivity, impedance, and modulus, as functions of frequency and temperature. The impedance results revealed that the dielectric relaxation at room temperature was dominated by a Debye-type process, with a shift to a non-Debye-type process becoming apparent as temperature increased. Comprehensive analysis sheds light on the material's transport phenomena and optical attributes, offering insights into the potential of BiYIG for applications in magneto-dielectric and magneto-optical domains, given its high dielectric constant with low dielectric loss, and promising optical properties. These findings position BiYIG as a versatile material and underscore its suitability for advanced applications in future technological developments. |
| format | Article |
| id | doaj-art-9229f44c32664bf3bf60ffbdb948f63f |
| institution | DOAJ |
| issn | 2667-0224 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
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| spelling | doaj-art-9229f44c32664bf3bf60ffbdb948f63f2025-08-20T02:48:39ZengElsevierChemical Physics Impact2667-02242024-12-01910067110.1016/j.chphi.2024.100671Exploring bismuth-substituted yttrium iron garnet: Insights into structural, optical, and dielectric characteristicsRavindra Hazam0Manjushree Maity1Sachin Verma2Rajeev Singh3Biswanath Bhoi4Department of Physics, Indian Institute of Technology (Banaras Hindu University) Varanasi, Varanasi 221005, IndiaDepartment of Physics, Indian Institute of Technology (Banaras Hindu University) Varanasi, Varanasi 221005, IndiaDepartment of Physics, Indian Institute of Technology (Banaras Hindu University) Varanasi, Varanasi 221005, IndiaDepartment of Physics, Indian Institute of Technology (Banaras Hindu University) Varanasi, Varanasi 221005, IndiaCorresponding author.; Department of Physics, Indian Institute of Technology (Banaras Hindu University) Varanasi, Varanasi 221005, IndiaMagnetic garnets, a diverse group of magnetic insulating materials, have been the subject of extensive research for decades, owing to their versatility and potential for a wide range of applications. In this study, we synthesized Bismuth-Substituted Yttrium Iron Garnet (BiY2Fe5O12: BiYIG) using the solid-state reaction method to explore its structural, optical, and dielectric characteristics. X-ray diffraction analysis revealed the attainment of a pure cubic garnet phase in BiYIG, with a lattice parameter of 12.444 Å. Using UV–visible spectroscopy, we determined that the optical band gap of BiYIG is 2.2 eV, indicating n-type semiconductor behavior. We conducted a thorough investigation of the dielectric properties, examining capacitance, dielectric constant, dielectric loss, conductivity, impedance, and modulus, as functions of frequency and temperature. The impedance results revealed that the dielectric relaxation at room temperature was dominated by a Debye-type process, with a shift to a non-Debye-type process becoming apparent as temperature increased. Comprehensive analysis sheds light on the material's transport phenomena and optical attributes, offering insights into the potential of BiYIG for applications in magneto-dielectric and magneto-optical domains, given its high dielectric constant with low dielectric loss, and promising optical properties. These findings position BiYIG as a versatile material and underscore its suitability for advanced applications in future technological developments.http://www.sciencedirect.com/science/article/pii/S2667022424002159Yttrium Iron GarnetSolid-State ReactionMicrowave Application |
| spellingShingle | Ravindra Hazam Manjushree Maity Sachin Verma Rajeev Singh Biswanath Bhoi Exploring bismuth-substituted yttrium iron garnet: Insights into structural, optical, and dielectric characteristics Chemical Physics Impact Yttrium Iron Garnet Solid-State Reaction Microwave Application |
| title | Exploring bismuth-substituted yttrium iron garnet: Insights into structural, optical, and dielectric characteristics |
| title_full | Exploring bismuth-substituted yttrium iron garnet: Insights into structural, optical, and dielectric characteristics |
| title_fullStr | Exploring bismuth-substituted yttrium iron garnet: Insights into structural, optical, and dielectric characteristics |
| title_full_unstemmed | Exploring bismuth-substituted yttrium iron garnet: Insights into structural, optical, and dielectric characteristics |
| title_short | Exploring bismuth-substituted yttrium iron garnet: Insights into structural, optical, and dielectric characteristics |
| title_sort | exploring bismuth substituted yttrium iron garnet insights into structural optical and dielectric characteristics |
| topic | Yttrium Iron Garnet Solid-State Reaction Microwave Application |
| url | http://www.sciencedirect.com/science/article/pii/S2667022424002159 |
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