锌替代对钴铁氧体纳米粒子磁性结构的影响

IF 3.1 2区化学 Q3 CHEMISTRY, PHYSICAL

Journal of Chemical Physics Pub Date : 2024-09-28 DOI:10.1063/5.0226884

Sonja Jovanović, Nader Yaacoub, Sawssen Slimani, Marjeta Maček Kržmanc, Marija Vukomanović, Matjaž Spreitzer, Davide Peddis, Alexander Omelyanchik

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引用次数: 0

摘要

本研究探讨了锌替代对 5 纳米钴铁氧体纳米颗粒（ZnxCo1-xFe2O4，其中 x = 0、0.13、0.34 和 0.55）磁性能的影响，证明了锌替代会引起自旋悬臂的复杂变化，并促使阳离子在亚晶格间重新分布。我们将铁磁性的经典双亚晶格奈尔模型与从 57Fe 莫斯鲍尔光谱仪获得的数据相结合，重建了这些尖晶铁氧体的磁性结构。因此，这项研究提供了对锌替代如何调整 CoFe2O4 纳米粒子磁性能的全面理解，为开发具有各种应用定制性能的磁性材料提供了宝贵的见解。

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Effect of Zn-substitution on magnetic structure of cobalt ferrite nanoparticles.

This study investigates the effects of Zn substitution on the magnetic properties of ∼5 nm cobalt ferrite nanoparticles (ZnxCo1-xFe2O4, where x = 0, 0.13, 0.34, and 0.55), demonstrating that Zn substitution induces complex changes in spin canting and prompts a redistribution of cations among the sublattices. We reconstructed the magnetic structure of these spinel ferrites by integrating the classical two-sublattice Néel model of ferrimagnetism with the data obtained from 57Fe Mössbauer spectrometry. Consequently, this research provides a comprehensive understanding of how Zn substitution tunes the magnetic properties of CoFe2O4 nanoparticles, offering valuable insights into the development of magnetic materials with tailored properties for various applications.

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来源期刊

Journal of Chemical Physics 物理-物理：原子、分子和化学物理

CiteScore

7.40

自引率

15.90%

发文量

1615

审稿时长

2 months

期刊介绍： The Journal of Chemical Physics publishes quantitative and rigorous science of long-lasting value in methods and applications of chemical physics. The Journal also publishes brief Communications of significant new findings, Perspectives on the latest advances in the field, and Special Topic issues. The Journal focuses on innovative research in experimental and theoretical areas of chemical physics, including spectroscopy, dynamics, kinetics, statistical mechanics, and quantum mechanics. In addition, topical areas such as polymers, soft matter, materials, surfaces/interfaces, and systems of biological relevance are of increasing importance. Topical coverage includes: Theoretical Methods and Algorithms Advanced Experimental Techniques Atoms, Molecules, and Clusters Liquids, Glasses, and Crystals Surfaces, Interfaces, and Materials Polymers and Soft Matter Biological Molecules and Networks.