Induced magnetic anisotropy in Si-free nanocrystalline soft magnetic materials: A transmission x-ray diffraction study

Abstract Alloys of FeNiSiB soft magnetic materials containing variable Fe and Ni contents (wt.%) have been produced by melt spinning method, a kind of rapid solidification technique. The magnetic and structural properties of FeNiSiB alloys with soft magnetic properties were investigated by increasing the Fe ratio. X-ray diffraction analysis and SEM images shows that the produced alloy ribbons generally have an amorphous structure, together with also partially nanocrystalline regions. It was observed that the structure became much more amorphous together with increasing Fe content in the composition. Among the alloy ribbons, the highest saturation magnetization was obtained as 0.6 emu/g in the specimen with 50 wt.% Fe. In addition, the highest Curie temperature was observed in the sample containing 46 wt.% Fe.

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Study of the Reproducibility of Ni-Zn Nanoferrite Obtained by Combustion Reaction

Materials Science Forum ◽

10.4028/www.scientific.net/msf.775-776.415 ◽

2014 ◽

Vol 775-776 ◽

pp. 415-420 ◽

Cited By ~ 5

Author(s):

Débora Albuquerque Vieira ◽

Verônica Cristina Souza Diniz ◽

Daniel R. Cornejo ◽

Ana Cristina Figueiredo de Melo Costa ◽

Ruth Herta Goldsmith Aliaga Kiminami

Keyword(s):

Electron Microscopy ◽

Combustion Synthesis ◽

Soft Magnetic Materials ◽

Spherical Particles ◽

Magnetic Characteristics ◽

X Ray Diffraction ◽

Soft Magnetic ◽

X Ray ◽

Crystallite Sizes ◽

Scanning Electron

This work involved a study of the reproducibility of the process of combustion synthesis to produce Ni-Zn ferrites. The structural, morphological and magnetic characteristics of the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and magnetometry using an alternating gradient magnetometer (AGM). The XRD diffractograms of the samples indicated that they are monophasic, crystalline, with crystallite sizes ranging from 21 to 38 nm, and have a homogeneous morphology consisting of agglomerates of spherical particles. The samples behaved as soft magnetic materials, with magnetization levels ranging from 37 to 47 emug-1. The combustion synthesis was found to be efficient in producing Ni-Zn nanoferrites, yielding reproducible results.

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X-Ray diffraction study of the evolution of phase and structural state and macroscopic stress during annealing of soft magnetic Fe95 − x Zr5N x films prepared by ion-plasma deposition

Crystallography Reports ◽

10.1134/s1063774514020217 ◽

2014 ◽

Vol 59 (2) ◽

pp. 266-275 ◽

Cited By ~ 4

Author(s):

E. N. Sheftel’ ◽

A. N. Ivanov ◽

G. Sh. Usmanova

Keyword(s):

Diffraction Study ◽

Structural State ◽

Plasma Deposition ◽

X Ray Diffraction ◽

Soft Magnetic ◽

X Ray ◽

Macroscopic Stress ◽

Ion Plasma

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Induced Magnetic Anisotropy of Sputter NiFe Thin Films on Thin Tantalum Nitride Underlayer

MRS Proceedings ◽

10.1557/proc-384-233 ◽

1995 ◽

Vol 384 ◽

Cited By ~ 5

Author(s):

T. Yeh ◽

L. Berg ◽

J. Falenschek ◽

J. Yue

Keyword(s):

Magnetic Anisotropy ◽

Anisotropy Field ◽

Tantalum Nitride ◽

X Ray Diffraction ◽

Crystalline Orientation ◽

X Ray ◽

Anisotropic Stress ◽

Magnetoelastic Energy ◽

Thermal Oxide ◽

Induced Magnetic Anisotropy

ABSTRACTThe structure and properties of sputter NiFe thin film deposited on both thermal oxide and thin tantalum nitride have been studied. The magnetic anisotropy field HK increases to 8.2 Oe when the NiFe film was deposited on a thin tantalum nitride underlayer. Anisotropic stress was found on the sample film with tantalum nitride underlayer. Results of X-ray diffraction show that a thin tantalum nitride underlayer appears to promote a preferred crystalline orientation formation of the NiFe film. The induced magnetic anisotropy is attributed to the formation of the preferred crystalline orientation and the induced anisotropic magnetoelastic energy which is associated with the anisotropic stress of the sample film.

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