Nanocrystallization processes and reorientation of the magnetic moments of FeCuNbSiB films

Li, X.D; Wen, Yuan; Zhao, Zhenjie; Wang, X.Z; Ruan, Juanfang; Yang, Xinliang

doi:10.1016/j.jmmm.2004.02.013

Cited by 23 publications

(10 citation statements)

References 25 publications

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“…Coercive eld (H c ) values are 40.7, 5.6, and 2.4 A/m for 250, 500, and 800 nm thick samples, respectively. Other researchers [8] report similar results. Relatively high coercive force in the lms compared to the ribbon with the same composition and its variation with thickness could be related to the presence of internal stresses in the lms and also to the intrinsic bidimensionality in thin lms.…”

Section: Resultssupporting

confidence: 75%

“…Among the soft magnetic materials, FeCuNbBSi or so-called Finemet-type alloys are good candidates for such applications due to their excellent magnetic softness. Microstructure and magnetic properties of FeCuNbBSi thin lms have been the subject of di erent studies [5][6][7][8][9][10][11][12][13]. Results have shown that amorphous thin lms exhibit di erent behaviour as compared to the rapidly quenched ribbons.…”

Section: Introductionmentioning

confidence: 99%

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The effects of thickness on magnetic properties of FeCuNbSiB sputtered thin films

et al. 2017

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Abstract. Thin lms of Fe 73:1 Cu 1 Nb 3:1 Si 14:7 B 8:2 alloy with 200, 500, and 800 nm thicknesses have been deposited by RF sputtering. Their magnetic properties have been characterized using Alternating Gradient Field Magnetometer (AGFM) and Vibrating Sample Magnetometer (VSM). The e ects of residual stresses investigated by nanoindentation experiments were conducted on the as-deposited samples. It is observed that the coercivity of as-deposited lms is inversely proportional to the thickness in relation with the residual stress induced during sputtering.

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Section: Resultssupporting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

The effects of thickness on magnetic properties of FeCuNbSiB sputtered thin films

et al. 2017

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“…The separation of the nano-crystalline phase would change the local composition of the amorphous matrix and enhance the magnetostriction coupling effect, resulting in an increase of the effective magnetostriction. Since the orientation of magnetic moments would be dominantly perpendicular to the film plane [21] , the coercivity force also increases significantly.…”

Section: Methodsmentioning

confidence: 99%

Structure, magnetic properties and giant magnetostriction studies in [Tb/Fe/Dy] n nano-multilayer film

Zhao

Huang

et al. 2009

Chin. Sci. Bull.

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Tb/Fe/Dy] n nano-multilayer films, with precise composition of Tb 0.27 Dy 0.73 Fe 2 , were prepared by the multi-targets magnetron sputtering technique at room temperature (sample A) and 300℃ substrate temperature (sample B). Both of the nano-multilayer films show columnar structures perpendicular to the film plane according to the scanning electron microscopy results. The magnetic hysteresis loops and the giant magnetostriction (GMS) property of the two samples indicate the perpendicular anisotropy in them. In spite of the perpendicular anisotropy, both of the samples present GMS effect. In a very low applied field of 0.18 T, the GMS value in sample B is 89.3 ppm, which is about four times of that in sample A, 23.5 ppm. The good low-field GMS effect in sample B might attribute to the Laves phase of R-Fe 2 segregated from the amorphous matrix under the thermal annealing of the substrate. The relation between the magnetization process and GMS property of the perpendicular anisotropy nano-multilayer films is further investigated.Tb/Fe/Dy nano-multilayer film, giant magnetostriction effect, perpendicular anisotropy, Terfenol-D The magnetostriction effect is described most generally as the deformation of a body in response to the change in an external magnetic field, which was first discovered by Joule [1] . In the 1970s, the discovery of the giant magnetostriction and the progress in this field demonstrated its important value in applications. The Tb 0.27 Dy 0.73 Fe 2 (R-Fe 2 ) alloy, named Terfenol-D, is considered a useful material because of its giant magnetostriction (GMS) effect and low magnetocrystalline anisotropy at room temperature [2 -4] . The Terfenol-D GMS thin films, overcoming the shortcomings of the rod materials, have high electronic resistivity, high magnetic permeability, low magnetic hysteresis and weak magnetocrystalline anisotropy [5][6][7] . The GMS films with low field sensitivity are useful to the new type electromechanical transformation system [8][9][10] .Recently, much research has focused on the magnetic properties and the GMS of R-Fe 2 single films which are prepared by physical vapor deposition (PVD) [5][6][7][11][12][13][14][15][16] or pulsed laser deposition (PLD) [17,18] . Among the above methods, sputtering is the most economical solution for the massive production of GMS thin films prepared by the composite target [5,6,11,12,17] or mosaic target [14 -16] . However, the composition and performance stability still remain a problem for the above sputtered GMS thin films.In this work, we developed a simple way to prepare GMS nano-multilayer films with precise composition for stable GMS performance. Pure element targets Tb, Dy and Fe were used to deposit [Tb/Fe/Dy] n nano-multilayer films. The stable GMS performance of the films was achieved through controlling the thickness of each layer, which would be beneficial to the commercial applications. The GMS effect and magnetic properties of the [Tb/Fe/Dy] n nano-multilayer films were firstly investigated.

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“…It has been shown that nanocrystalline Fe 73.5 Cu 1 Nb 3 Si 13.5 B 9 alloy, also called FINEMET, exhibits excellent soft magnetic properties [12][13][14]. The magnetic and MI properties of nanocrystalline Fe-based alloys and the effect of partially replacing Fe with Cr, Al, or Co on these properties have been extensively investigated [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Magnetic and magnetoimpedance properties of Mn-doped FINEMET

Kolat

Bayri

Michalik

et al. 2009

Journal of Non-Crystalline Solids

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Nanocrystallization processes and reorientation of the magnetic moments of FeCuNbSiB films

Cited by 23 publications

References 25 publications

The effects of thickness on magnetic properties of FeCuNbSiB sputtered thin films

The effects of thickness on magnetic properties of FeCuNbSiB sputtered thin films

Structure, magnetic properties and giant magnetostriction studies in [Tb/Fe/Dy] n nano-multilayer film

Magnetic and magnetoimpedance properties of Mn-doped FINEMET

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