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FeO纳米管的静态和动态磁性能

Static and Dynamic Magnetic Properties of FeO Nanotubes.

作者信息

Olea de la Hoz Francisco, Saavedra Eduardo, Pereira Alejandro, Escrig Juan

机构信息

Department of Physics, University of Santiago de Chile (USACH), Santiago 9170124, Chile.

Department of Sciences, Faculty of Liberal Arts, Adolfo Ibañez University (UAI), Santiago 7941169, Chile.

出版信息

Nanomaterials (Basel). 2023 Apr 3;13(7):1265. doi: 10.3390/nano13071265.

DOI:10.3390/nano13071265
PMID:37049358
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10097039/
Abstract

In this paper, our objective was to investigate the static and dynamic magnetic properties of FeO nanotubes that are 1000 nm long, by varying the external radius and the thickness of the tube wall. We performed a detailed numerical analysis by simulating hysteresis curves with an external magnetic field applied parallel to the axis of the tubes (along the -axis). Our findings indicate that nanotubes with an external radius of 30 nm exhibit non-monotonic behavior in their coercivity due to a change in the magnetization reversal mechanism, which was not observed in nanotubes with external radii of 80 nm. Additionally, we explored the dynamic susceptibility of these nanotubes and found that the position and number of resonance peaks can be controlled by manipulating the nanotube geometry. Overall, our study provides valuable insights into the behavior of FeO nanotubes, which can aid in the design and improvement in pseudo-one-dimensional technological devices.

摘要

在本文中，我们的目标是通过改变管壁的外半径和厚度，研究长度为1000 nm的FeO纳米管的静态和动态磁性能。我们通过模拟平行于管轴（沿z轴）施加外部磁场时的磁滞曲线进行了详细的数值分析。我们的研究结果表明，由于磁化反转机制的变化，外半径为30 nm的纳米管在矫顽力方面表现出非单调行为，而外半径为80 nm的纳米管中未观察到这种现象。此外，我们还研究了这些纳米管的动态磁化率，发现可以通过控制纳米管的几何形状来控制共振峰的位置和数量。总的来说，我们的研究为FeO纳米管的行为提供了有价值的见解，这有助于伪一维技术设备的设计和改进。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0276/10097039/2a97c9c4fe31/nanomaterials-13-01265-g006.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0276/10097039/27ad95c7b3b0/nanomaterials-13-01265-g0A2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0276/10097039/152cfb9090ba/nanomaterials-13-01265-g0A3.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0276/10097039/0e9e9940d942/nanomaterials-13-01265-g0A5.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0276/10097039/2a97c9c4fe31/nanomaterials-13-01265-g006.jpg

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本文引用的文献

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