Effect of grain size on magnetic properties and microstructure of Ni80Fe20 thin films

Chen, Yuan-Tsung; Tseng, Jiun-Yi; Sheu, Tzer‐Shin; Lin, Yen-Sheng; Lin, S. H.

doi:10.1016/j.tsf.2012.12.058

Cited by 19 publications

(2 citation statements)

References 14 publications

(13 reference statements)

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“…The changes in the H c parameter can be attributed to the changes in the morphology of the films (particle size and roughness), as demonstrated in previous studies for a wide variety of materials (Cao & Zhou, 2013; Chen et al, 2013; Denizli et al, 2020; Dev et al, 2022; Hanafi et al, 2016; Iwatsubo et al, 1999; Kim et al, 2003; Long et al, 2022; Ng et al, 2002; Rhen & Roy, 2008; Saraç et al, 2015a; Saraç et al, 2015b; Saraç et al, 2019; Saraç et al, 2020; Saraç et al, 2021b; Saraç & Baykul, 2021b; Vemagiri et al, 2003). For example, Figure 11 reveals a good relationship between the average roughness and the H c parameter.…”

Section: Resultsmentioning

confidence: 53%

Tuning structural properties, morphology and magnetic characteristics of nanostructured Ni‐Co‐Fe/ITO ternary alloys by galvanostatic pretreatment process

Saraç

Trong

Baykul

et al. 2022

Microscopy Res & Technique

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In this research, the structural properties, surface morphology, and magnetic characteristics of nanostructured ternary ferromagnetic alloys grown by a cost‐effective and effortless two‐step electrochemical deposition method on indium tin oxide (ITO) substrates with and without a galvanostatic pretreatment process (GPP) were examined. The GPP was applied at various pretreatment current densities (PCDs) such as −10, −20, and − 30 mA/cm2. The effect of the PCD on the Ni, Co, and Fe contents is found to be insignificant and all resultant Ni‐Co‐Fe thin films show an abnormal co‐deposition. The films have nano‐sized crystallites ranging from 17.3 to 19.6 nm and showed a face‐centered cubic structure with the [111] preferential growth. Compared to the non‐GPP applied Ni‐Co‐Fe film, growing the ternary Ni‐Co‐Fe film on ITO at the PCD of −30 mA/cm2 causes an improvement in the crystal quality and a reduction in the particle size from 150 ± 50 to 70 ± 20 nm. A decrement in the surface roughness and coercivity was also achieved by applying the GPP at the PCD of −30 mA/cm2, but the opposite is true for the GPP performed at the PCD of −10 mA/cm2. The GPP has an effect on the magnetic Squareness Ratio (SQR), but the influence of the PCD on the SQR parameter is negligible. The obtained findings reveal that the properties of the Ni‐Co‐Fe/ITO ternary alloys can be tuned through the GPP applied in various PCDs. Highlights • The effect of the PCD on the Ni, Co, and Fe contents is found to be insignificant. • The films have nano‐sized crystallites and showed a face‐centered cubic structure with the [111] preferential growth. • The analysis reveals that the GPP changes the crystal quality, Hc parameter, surface roughness, and particle size of the films. • The GPP has an effect on the magnetic squareness ratio (SQR), but the influence of the PCD on the SQR parameter is negligible. • The films had nano‐sized crystallites ranging from 17.3 to 19.6 nm. • The films were ferromagnetic, and the Hc and SQR parameters of the films ranged from 30.2 to 42.7 Oe and from 8.8% to 19.6%.

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Section: Resultsmentioning

confidence: 53%

Tuning structural properties, morphology and magnetic characteristics of nanostructured Ni‐Co‐Fe/ITO ternary alloys by galvanostatic pretreatment process

Saraç

Trong

Baykul

et al. 2022

Microscopy Res & Technique

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show abstract

“…The authors have correlated this behavior of SQ with the presence of columnar crystalline structure, which results in an out-of plane magnetization component. Another explanation for the decrease of SQ with thickness is the one cited in the work of Y. T. Chen et al [27] about the refinement of the grain size which reduces the effective anisotropy constant (K eff ) and reinforces the ferromagnetic exchange coupling.…”

Section: Magnetic Propertiesmentioning

confidence: 99%

Structure, microstructure and magnetic properties of Ni75Fe25 films elaborated by evaporation from nanostructured powder

Kaibi

Guittoum

Öksüzoğlu

et al. 2015

Applied Surface Science

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Controlling the surface morphologies, structural and magnetic properties of electrochemically fabricated Ni–Co thin film samples via seed layer deposition

Denizli

Saraç

Baykul

2020

J Mater Sci: Mater Electron

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Effect of grain size on magnetic properties and microstructure of Ni80Fe20 thin films

Cited by 19 publications

References 14 publications

Tuning structural properties, morphology and magnetic characteristics of nanostructured Ni‐Co‐Fe/ITO ternary alloys by galvanostatic pretreatment process

Tuning structural properties, morphology and magnetic characteristics of nanostructured Ni‐Co‐Fe/ITO ternary alloys by galvanostatic pretreatment process

Structure, microstructure and magnetic properties of Ni75Fe25 films elaborated by evaporation from nanostructured powder

Controlling the surface morphologies, structural and magnetic properties of electrochemically fabricated Ni–Co thin film samples via seed layer deposition

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