التفاصيل البيبلوغرافية
| العنوان: |
Synthesis of Sandwiched Composite Nanomagnets by Epitaxial Growth of Fe 3 O 4 Layers on SrFe 10 Cr 2 O 19 Nanoplates in High-Boiling Organic Solvent. |
| المؤلفون: |
Anokhin, Evgeny O., Deyankov, Danila A., Xia, Zitian, Kozlyakova, Ekaterina S., Lebedev, Vasily A., Morozov, Anatolii V., Kozlov, Daniil A., Nygaard, Roy R., Petukhov, Dmitry I., Trusov, Lev A. |
| المصدر: |
Nanomaterials (2079-4991); Jan2023, Vol. 13 Issue 1, p167, 16p |
| مصطلحات موضوعية: |
IRON oxides, EPITAXY, FERRIC oxide, ORGANIC solvents, IRON, IRON oxide nanoparticles |
| مستخلص: |
Herein, we demonstrate the synthesis of sandwiched composite nanomagnets, which consist of hard magnetic Cr-substituted hexaferrite cores and magnetite outer layers. The hexaferrite plate-like nanoparticles, with average dimensions of 36.3 nm × 5.2 nm, were prepared via a glass crystallization method and were covered by spinel-type iron oxide via thermal decomposition of iron acetylacetonate in a hexadecane solution. The hexaferrite nanoplates act as seeds for the epitaxial growth of the magnetite, which results in uniform continuous outer layers on both sides. The thickness of the layers can be adjusted by controlling the concentration of metal ions. In this way, layers with an average thickness of 3.7 and 4.9 nm were obtained. Due to an atomically smooth interface, the magnetic composites demonstrate the exchange coupling effect, acting as single phases during remagnetization. The developed approach can be applied to any spinel-type material with matching lattice parameters and opens the way to expand the performance of hexaferrite nanomagnets due to a combination of various functional properties. [ABSTRACT FROM AUTHOR] |
|
Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
Full Text Finder