An investigation of the effect of structural order on magnetostriction and magnetic behavior of Fe–Ga alloy thin films

Javed, Anam; Szumiata, T.; Morley, N. A.; Gibbs, M.R.J.

doi:10.1016/j.actamat.2010.03.023

Cited by 52 publications

(34 citation statements)

References 51 publications

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“…4 o that corresponds to A2 structure. Though this is the most likely crystal structure, it could also be that of DO 3 (Fe 3 Al type, α"), which have X-ray diffraction reflections at (220) for 43.6 o peak and (400) for 63.4 o [2,11] , since the alloy composition is in the range of 25 between 25 and 30%.…”

Section: Resultsmentioning

confidence: 99%

Growth and Magnetic Properties of RF Sputtered Fe-Ga Thin Films

2015

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We report the growth and characterization of Fe-Ga thin films. These films were RF sputtered onto Si, MgO and quartz substrates by controlling the parameters such as the deposition time, power and substrate temperature. The deposited films were characterized using X-Ray Diffraction, Atomic Force Microscopy and Vibration Sample Magnetometry measurements. The effect of substrates on the structure and magnetic properties were studied. XRD pattern of the deposited films showed the formation of DO 3 phase with L1 2 ordered structure at higher sputtering power. The room temperature deposited films demonstrated higher magnetization (0.08 emu/g) as compared to higher substrate temperature (300 o C) deposited films. The M r /M s ratio was found to be 0.037 for films deposited at room temperature and 0.009 for the substrate temperature 300 o C. L1 2 order was observed in films deposited on MgO and Quartz substrates. Magnetization was also found to be high (M s out of plane = 518 emu/cm 3 , M s in plane = 707 emu/cm 3 ) for films deposited on MgO substrate.

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Section: Resultsmentioning

confidence: 99%

Growth and Magnetic Properties of RF Sputtered Fe-Ga Thin Films

2015

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“…2) have been fitted with Voigttype functions (Zeeman sextets convoluted with Gaussian hyperfine field distributions), what is a common procedure for disordered alloys [7,8]. In order to minimize χ 2 function combined gradient-genetic algorithm was utilized (like in previous paper [2]) transcribed for MS Excel VBA language. Experimental spectra with theoretical fits and corresponding hyperfine field distributions for Fe 80 Ga 20 films of different thickness are presented in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…This material is applied in magnetic microelectromechanical systems (MagMEMS) [1]. Recently [2], polycrystalline Fe 100−x Ga x films (14 ≤ x ≤ 32) deposited on Si(100) with a co-sputtering and evaporation technique were investigated. X-ray diffraction outcomes showed that all films had 110 crystallographic texture normal to the film plane.…”

Section: Introductionmentioning

confidence: 99%

Structural and Magnetic Ordering in Fe-Ga Thin Films Examined by Mössbauer Spectrometry

et al. 2011

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The detailed analysis of atomic and magnetic structure has been performed by Mössbauer spectroscopy for polycrystalline Fe80Ga20 films of different thickness ranging from 20 nm to 200 nm. The films were deposited on Si(100) substrate using dual sputtering and evaporation method. Obtained CEMS spectra have been fitted with several Gaussian distributions of hyperfine magnetic field. The results point to the domination of BCC disordered A2 phase and the absence of DO3 and L12 phases in the films. Both hyperfine parameters and lattice constant reveal anomaly for 40 nm thick sample -presumably due to the change of the internal stress. Spin texture evolves from in-plane to out-of-the-plane configuration with increasing thickness.

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“…The system consisted of 57 Co(Rh) X-ray source on a vibrator moving with constant acceleration, and gas flow type conversion electron detector (Model MM/CED-3) in 2 backscattering mode for counting the resonant 7.3 and 5.6 keV electrons (generated by the internal conversion process). The same equipment was successfully applied for the recent investigations of high-magnetostrictive Fa-Ga thin layers [12][13][14]. The thickness both of previous and present samples was smaller than penetration depth of conversion electrons [15] thus our thin layered structures were probed over the full cross-section.…”

Section: Experimental Set-upmentioning

confidence: 99%

“…A numerical minimisation of 2 function was performed by means of PolMoss software (based on MS Excel Solver extension) offering both gradient and evolutionary algorithms. Previously, this package was effectively applied for CEMS spectra analysis of in the case of Fa-Ga thin layers [12][13][14]. Fig.…”

Section: Experimental Set-upmentioning

confidence: 99%

Interface influence on the properties of Co 90 Fe 10 films on soft magnetic underlayers – Magnetostrictive and Mössbauer spectrometry studies

Szumiata

Gzik-Szumiata

Brzózka

et al. 2016

Journal of Magnetism and Magnetic Materials

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Article:Szumiata, T., Gzik-Szumiata, M., Brzózka, K. et al. (5 more ReuseUnless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request.

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An investigation of the effect of structural order on magnetostriction and magnetic behavior of Fe–Ga alloy thin films

Cited by 52 publications

References 51 publications

Growth and Magnetic Properties of RF Sputtered Fe-Ga Thin Films

Growth and Magnetic Properties of RF Sputtered Fe-Ga Thin Films

Structural and Magnetic Ordering in Fe-Ga Thin Films Examined by Mössbauer Spectrometry

Interface influence on the properties of Co 90 Fe 10 films on soft magnetic underlayers – Magnetostrictive and Mössbauer spectrometry studies

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