Magnetic properties of bamboo-like Ni-Zn-in nanowires using 3D-AAO templates

IF 3.8 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Vacuum Pub Date : 2024-10-01 DOI:10.1016/j.vacuum.2024.113694

引用次数: 0

Abstract

In this paper, using three-dimensional porous alumina (3D-AAO) as a template, Ni-Zn-In nanowires array with periodically changing diameters was successfully prepared by direct current electrodeposition method. The effect of deposition voltage on the morphology, crystal structure and magnetic properties of Ni-Zn-In ternary alloy nanowires was studied. The experimental results show that the diameters of the nanowires are 212 nm and 151 nm, and the periodic length is 800 nm, which matches the pore size of the phosphoric acid-etched 3D-AAO template. XRD results indicate that the crystal structure of Ni-Zn-In nanowires can be adjusted by the deposition voltage. The VSM results reveal that the Ni-Zn-In nanowires possess soft magnetic properties and significant magnetic anisotropy, with the easy magnetization direction parallel to the film. The nanowires deposited at −1.5 V exhibit the highest coercivity of 161 Oe and squareness of 0.045. Micromagnetic simulations show that the magnetization reversal mechanism of the Ni-Zn-In nanowires is localized nucleation mode.

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使用 3D-AAO 模板的竹节状 Ni-Zn-in 纳米线的磁性能

本文以三维多孔氧化铝（3D-AAO）为模板，采用直流电沉积法成功制备了直径周期性变化的镍锌铟纳米线阵列。研究了沉积电压对 Ni-Zn-In 三元合金纳米线形貌、晶体结构和磁性能的影响。实验结果表明，纳米线的直径分别为 212 nm 和 151 nm，周期长度为 800 nm，与磷酸蚀刻三维-AAO 模板的孔径相匹配。XRD 结果表明，镍锌铟纳米线的晶体结构可以通过沉积电压进行调整。VSM 结果表明，Ni-Zn-In 纳米线具有软磁特性和显著的磁各向异性，易磁化方向与薄膜平行。在 -1.5 V 下沉积的纳米线具有最高的矫顽力（161 Oe）和方正度（0.045）。微磁模拟表明，Ni-Zn-In 纳米线的磁化反转机制是局部成核模式。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Vacuum 工程技术-材料科学：综合

CiteScore

6.80

自引率

17.50%

发文量

审稿时长

34 days

期刊介绍： Vacuum is an international rapid publications journal with a focus on short communication. All papers are peer-reviewed, with the review process for short communication geared towards very fast turnaround times. The journal also published full research papers, thematic issues and selected papers from leading conferences. A report in Vacuum should represent a major advance in an area that involves a controlled environment at pressures of one atmosphere or below. The scope of the journal includes: 1. Vacuum; original developments in vacuum pumping and instrumentation, vacuum measurement, vacuum gas dynamics, gas-surface interactions, surface treatment for UHV applications and low outgassing, vacuum melting, sintering, and vacuum metrology. Technology and solutions for large-scale facilities (e.g., particle accelerators and fusion devices). New instrumentation ( e.g., detectors and electron microscopes). 2. Plasma science; advances in PVD, CVD, plasma-assisted CVD, ion sources, deposition processes and analysis. 3. Surface science; surface engineering, surface chemistry, surface analysis, crystal growth, ion-surface interactions and etching, nanometer-scale processing, surface modification. 4. Materials science; novel functional or structural materials. Metals, ceramics, and polymers. Experiments, simulations, and modelling for understanding structure-property relationships. Thin films and coatings. Nanostructures and ion implantation.