Electrical Effects of Ionic Deficient Cubic Ferrite Spinels: A Case Study on MgFe2O4
Abstract Electron transport via indirect exchange interactions between octahedral sites in spinels is affected by cationic or anionic vacancies. Thus, the deviation of the electron hopping mechanism is investigated, from a constant energy barrier toward a variable range energy barrier in iron‐defici...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2024-02-01
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| Series: | Advanced Physics Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/apxr.202300057 |
| _version_ | 1797319476474019840 |
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| author | Farshad Farshidfar Hannah Oreskovic Dominic H. Ryan Khashayar Ghandi |
| author_facet | Farshad Farshidfar Hannah Oreskovic Dominic H. Ryan Khashayar Ghandi |
| author_sort | Farshad Farshidfar |
| collection | DOAJ |
| description | Abstract Electron transport via indirect exchange interactions between octahedral sites in spinels is affected by cationic or anionic vacancies. Thus, the deviation of the electron hopping mechanism is investigated, from a constant energy barrier toward a variable range energy barrier in iron‐deficient and oxygen‐deficient cubic magnesium ferrite spinels. Variable range electron hopping activation energy at high temperatures is consistent with the modified cation–anion interactions in the distorted structure of an ionic deficient cubic magnesium ferrite spinel. For these observations, an instrumental method is developed to evaluate the electron exchange interactions and general redox kinetics on surfaces, managed by exposure to the flow of a wide variety of desired gases. The applications of this instrument are far beyond the example studies reported here. |
| first_indexed | 2024-03-08T04:08:22Z |
| format | Article |
| id | doaj.art-3c5f369541e043e795bd877e777efce2 |
| institution | Directory Open Access Journal |
| issn | 2751-1200 |
| language | English |
| last_indexed | 2024-03-08T04:08:22Z |
| publishDate | 2024-02-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Physics Research |
| spelling | doaj.art-3c5f369541e043e795bd877e777efce22024-02-09T04:10:47ZengWiley-VCHAdvanced Physics Research2751-12002024-02-0132n/an/a10.1002/apxr.202300057Electrical Effects of Ionic Deficient Cubic Ferrite Spinels: A Case Study on MgFe2O4Farshad Farshidfar0Hannah Oreskovic1Dominic H. Ryan2Khashayar Ghandi3Department of Chemistry University of Guelph Guelph ON N1G 2W1 CanadaDepartment of Chemistry University of Guelph Guelph ON N1G 2W1 CanadaPhysics Department McGill University Montreal H3A 2T8 CanadaDepartment of Chemistry University of Guelph Guelph ON N1G 2W1 CanadaAbstract Electron transport via indirect exchange interactions between octahedral sites in spinels is affected by cationic or anionic vacancies. Thus, the deviation of the electron hopping mechanism is investigated, from a constant energy barrier toward a variable range energy barrier in iron‐deficient and oxygen‐deficient cubic magnesium ferrite spinels. Variable range electron hopping activation energy at high temperatures is consistent with the modified cation–anion interactions in the distorted structure of an ionic deficient cubic magnesium ferrite spinel. For these observations, an instrumental method is developed to evaluate the electron exchange interactions and general redox kinetics on surfaces, managed by exposure to the flow of a wide variety of desired gases. The applications of this instrument are far beyond the example studies reported here.https://doi.org/10.1002/apxr.202300057electrical propertieselectron hoppingionic deficiencyMgFe2O4 |
| spellingShingle | Farshad Farshidfar Hannah Oreskovic Dominic H. Ryan Khashayar Ghandi Electrical Effects of Ionic Deficient Cubic Ferrite Spinels: A Case Study on MgFe2O4 Advanced Physics Research electrical properties electron hopping ionic deficiency MgFe2O4 |
| title | Electrical Effects of Ionic Deficient Cubic Ferrite Spinels: A Case Study on MgFe2O4 |
| title_full | Electrical Effects of Ionic Deficient Cubic Ferrite Spinels: A Case Study on MgFe2O4 |
| title_fullStr | Electrical Effects of Ionic Deficient Cubic Ferrite Spinels: A Case Study on MgFe2O4 |
| title_full_unstemmed | Electrical Effects of Ionic Deficient Cubic Ferrite Spinels: A Case Study on MgFe2O4 |
| title_short | Electrical Effects of Ionic Deficient Cubic Ferrite Spinels: A Case Study on MgFe2O4 |
| title_sort | electrical effects of ionic deficient cubic ferrite spinels a case study on mgfe2o4 |
| topic | electrical properties electron hopping ionic deficiency MgFe2O4 |
| url | https://doi.org/10.1002/apxr.202300057 |
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