A comparison of the magnetic properties of Ni and Co nanowires deposited in different templates and on different substrates

Yalçın, Orhan; Kartopu, Giray; Çetin, H.; Demiray, A. S.; Kazan, S.

doi:10.1016/j.jmmm.2014.04.004

Cited by 24 publications

(11 citation statements)

References 74 publications

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“…This phenomenon exists in the Co nanowires with the c-axis perpendicular to the nanowire axis 27 and in Ni nanowires with high magneto-crystal anisotropy 28 . Considering the difference of fitted under NC and PC, we can obtain the high magneto-crystal anisotropy of the FeNi gradient nanowire, .…”

Section: Resultsmentioning

confidence: 94%

Static and Dynamic Magnetization of Gradient FeNi Alloy Nanowire

Yang

Zeng

et al. 2016

Sci Rep

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FeNi binary nanowires with gradient composition are fabricated by the electrodeposition method. The energy dispersive spec-trometer line-sweep results show that the composition changes gradually along the wire axis. The gradient FeNi nanowires exhibit polycrystalline and crystal twinning at different areas along the nanowire axis, with a textured face-centered cubic structure. The static and dynamic magnetization properties are characterized by a hysteresis loop and ferromagnetic reso-nance with pumping frequencies from 12– 40 GHz. The linear dispersion of the pumping frequency vs: the resonance field has been observed with the applied bias field higher than the saturation field, corresponding to the hysteresis loop. The field-sweep linewidths decrease with increasing pumping frequency, and the frequency-sweep linewidths stay nearly constant at the unsaturated region. The linewidth is a Gilbert type at the saturated state, with damping of 0.035 ± 0.003. Compared with the damping of the homogeneous composition FeNi nanowire (a = 0.044 ± 0.005), the gradient FeNi nanowire may have less eddy current damping, which could make it an alternative candidate for spintronics and microstrip antennas.

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Section: Resultsmentioning

confidence: 94%

Static and Dynamic Magnetization of Gradient FeNi Alloy Nanowire

Yang

Zeng

et al. 2016

Sci Rep

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“…This work presents the IS data for the aligned Ni nanowires, including data interpretation based on fitting models commonly used to enable a better understanding of the materials systems. Ni nanowires have presented interesting applications in various fields, such as magnetic materials [25][26][27][28]. We use Ni NWs as a ferromagnetic material to create wellaligned nanowires and taking advantage of their high surface to volume ratio.…”

Section: Introductionmentioning

confidence: 99%

Room temperature selective sensing of aligned Ni nanowires using impedance spectroscopy

Mohammadi

Fardindoost

zad

et al. 2020

Mater. Res. Express

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Room temperature gas sensing behavior of arrayed one-dimensional (1D) nickel nanowires (Ni NWs) are investigated using impedance spectroscopy. Ni nanowires synthesized via electrochemical deposition method based on anodic aluminum oxide (AAO) templates. Their structural characterization verified by scanning electron microscopy (SEM), x-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FT-IR) analysis. Impedance spectroscopy as an essential technique utilized to understand the mechanism of gas interaction with the wires through the changes in their electronic behavior. Bode and Nyquist plots with the real and imaginary impedances are plotted versus frequency range of 500 Hz to 2 MHz at different relative humidity values (varying from 30% to 70%) and ethanol vapor concentrations (varying from 2 to 18 ppm). The equivalent circuits are proposed and simulated for impedance responses to both humidity and ethanol vapors. The impedance plots indicate the increase in resistance of the aligned nanowires at low frequencies by the adsorption of water and ethanol molecules.

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“…Among these members, nickel nanowire (NiNW) is a prominent example for having different properties from bulk metal due to the one-dimensional (1D) geometry and large shape anisotropy, which can enhance the coercivity and prevent it from becoming superparamagnetic [ 17 , 18 ]. Based on the special properties of NiNWs, numerous promising applications have been achieved, such as optical sensing, plasmonic resonance sensors, perpendicular magnetic storage, functional devices, negative permeability, biological separation, wire-grid type micro polarizer, trenches, and capacitors [ 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

“…Different techniques generating NiNWs include, but are not limited to, chemical vapor deposition (CVD) [ 21 ], electrochemical deposition [ 19 , 22 ], electrospinning [ 23 , 24 ], bacterial system approach [ 25 ], microwave-assisted process [ 17 , 26 ], and solvothermal methods [ 27 ]. Despite these techniques successfully fabricating products, a further scale-up of production would be mitigated for the specialized requirements and cost, such as the templates (CVD and electrodeposition), high voltage (electrospinning), biological culture (bacterial system), high energy processing, Teflon-lined stainless steel autoclaves (solvothermal approach), or microwave generators (microwave heating).…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Nickel Nanowires with Tunable Characteristics

Xia

Wen

2016

Nanomaterials

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A one-step synthesis of magnetic nickel nanowires (NiNWs) with tunable characteristics is reported. The method is simple and easy to be conducted, leading to high compatibility with scaling-up. It is discovered that the size and morphology of NiNWs can be adjusted by tuning the reaction temperature, time length, as well as surfactant concentration. It is found that the products have shown high purity which remained after being stored for several months. A remarkable enhanced saturation magnetization of the product was also observed, compared to that of bulk nickel. By providing both practical experimental details and in-depth mechanism, the work introduced in this paper may advance the mass production and further applications of NiNWs.

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A comparison of the magnetic properties of Ni and Co nanowires deposited in different templates and on different substrates

Cited by 24 publications

References 74 publications

Static and Dynamic Magnetization of Gradient FeNi Alloy Nanowire

Static and Dynamic Magnetization of Gradient FeNi Alloy Nanowire

Room temperature selective sensing of aligned Ni nanowires using impedance spectroscopy

Synthesis of Nickel Nanowires with Tunable Characteristics

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