| Title: | Mn-induced stabilization of a ▫$\beta$▫-alumina-type defect structure in barium hexaferrite nanoplatelets |
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| Authors: | ID Makovec, Darko, Institut "Jožef Stefan" (Author)
ID Poberžnik, Matic, Institut "Jožef Stefan" (Author)
ID Teržan, Janvit (Author)
ID Mertelj, Tomaž, Institut "Jožef Stefan" (Author)
ID Vengust, Damjan, Institut "Jožef Stefan" (Author)
ID Dražić, Goran (Author)
ID Lisjak, Darja, Institut "Jožef Stefan" (Author)
ID Gyergyek, Sašo, Institut "Jožef Stefan" (Author) |
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| Files: |  URL - Source URL, visit https://pubs.acs.org/doi/full/10.1021/acs.chemmater.6c00103
 PDF - Presentation file, download (11,07 MB)
MD5: FDD7602D7AEA8B5C38B735FF8289F6D8
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  IJS - Jožef Stefan Institute
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| Abstract: | Hexaferrite nanoplatelets exhibit size-dependent structural variations influencing their magnetic properties. Here, we synthesized Mn-substituted barium ferrite nanoplatelets via hydrothermal methods, achieving up to ∼27% Fe substitution. Advanced STEM and Raman analyses revealed depletion of Fe(2b) trigonal lattice sites and associated oxygen vacancies, forming a β-alumina-type ferrite structure─representing the first pure Ba2+ β-ferrite analogue. First-principles modeling confirmed the thermodynamic stabilization of this defected structure at higher Mn/Fe ratios. Mn substitution reduced nanoplatelet size and suppressed magnetic properties, which were restored upon annealing at 800 °C, reverting to the M-type hexaferrite structure with expected magnetic behavior. These findings elucidate nanoscale structural adaptations induced by chemical substitution and offer insights into tailoring the magnetic properties of barium ferrite nanoplatelets through controlled synthesis and post-treatment. |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 14.01.2026 |
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| Article acceptance date: | 04.03.2026 |
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| Publication date: | 16.03.2026 |
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| Publisher: | American Chemical Society |
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| Year of publishing: | 2026 |
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| Number of pages: | str. A-M |
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| Numbering: | Vol. 38, iss. |
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| Source: | ZDA |
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| PID: | 20.500.12556/DiRROS-28538  |
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| UDC: | 621.7+621.9 |
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| ISSN on article: | 1520-5002 |
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| DOI: | 10.1021/acs.chemmater.6c00103 |
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| COBISS.SI-ID: | 272644355 |
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| Copyright: | © 2026 The Authors. |
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| Note: | Nasl. z nasl. zaslona;
Soavtorja iz Slovenije: Matic Poberžnik, Janvit Teržan, Tomaž Mertelj, Damjan Vengust, Goran Dražić, Darja Lisjak, Sašo Gyergyek;
Opis vira z dne 23. 3. 2026;
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| Publication date in DiRROS: | 23.03.2026 |
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| Views: | 145 |
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| Downloads: | 125 |
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