Recovery of soft magnetic properties of FeNiSm films by Ta interlayer

Xi, Li; Sun, Qilong; Li, X.Y.; Zhou, Jùn; Du, Jie; Ma, J.H.; Wang, Z.; Shi, Xiaoning; Zuo, Yalu; Xue, Desheng

doi:10.1016/j.jmmm.2011.03.039

Cited by 13 publications

(8 citation statements)

References 26 publications

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“…The magnetization reversal mechanism of them cannot be singly explained by means of a coherent rotation, transverse reversal mode, or a vortex domain wall. According to previous works [26,37], the magnetization reversal mechanism can be divided into two parts. When the applied field direction is close to the easy axis, the magnetization is reversed by the domain wall depinning, while the magnetization is reversed dominantly by coherent rotation when the applied field direction is close to the hard axis.…”

Section: Resultsmentioning

confidence: 99%

In-plane Uniaxial Anisotropy and Magnetization Reversal Mechanism of FeCo Films by Strip Pattern

Han

Wang

et al. 2014

Acta Metall. Sin. (Engl. Lett.)

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Strip-like FeCo films were patterned by a traditional lithograph process from intrinsically isotropic continuous FeCo films. The strip-patterned FeCo film shows a strong in-plane uniaxial magnetic anisotropy with easy axis along the length direction of the strip. The angular dependences of remanence ratio, switching field, and coercivity indicate that the magnetization reversal mechanism of the strip-patterned FeCo film is coherent rotation and domain wall depinning when the applied field is near the hard axis and easy axis, respectively. The consistency of the experimental hysteresis loops of the strip-patterned FeCo film and calculated hysteresis loops with a simple in-plane uniaxial anisotropy model indicates that the strip-patterned FeCo film behaves as a single domain. The absence of the domain wall and the strong in-plane anisotropy field make the strip-patterned FeCo films have much potential for high-frequency application.

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Section: Resultsmentioning

confidence: 99%

In-plane Uniaxial Anisotropy and Magnetization Reversal Mechanism of FeCo Films by Strip Pattern

Han

Wang

et al. 2014

Acta Metall. Sin. (Engl. Lett.)

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“…The film exhibits in-plane anisotropy due to dominant shape anisotropy. It is noted that the in-plane hysteresis loop of the film has noticeable characteristics of the so-called as transcritical hysteresis loops, which is an indication of the appearance of perpendicular anisotropy exhibiting a weak stripe domain structure [2][3][4][5][8][9][10]. Furthermore, from the area between the two normalized magnetization curves, we obtained the effective anisotropy field: H eff k = 2(K u − 2πM 2 s )/M s = −5000Oe, in which, 4πM s = 11, 923 Gs.…”

Section: Methodsmentioning

confidence: 99%

“…L Sun reports that with the addition of Gd and Tb, the easy axis of the perpendicular uniaxial anisotropy evolves from film plane to film normal [1]. However, Ta interlayer [4] and annealing at proper temperature [5] lead to an inplane uniaxial anisotropy, which was found in FeNiSm. In fact, uniaxial magnetic anisotropy in amorphous RE-TM alloy films is also a common feature [6,7].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Substrate Temperature on Magnetic and Electrical Properties of (CeO2)14Fe86 Films

Zhou

Yao

Hou

et al. 2015

J Supercond Nov Magn

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CeO 2 ) 14 Fe 86 films were fabricated by a radio frequency magnetron sputtering method at different substrate temperature. The results reveal that the films deposited at substrate temperature lower than 773 K exhibit a strong perpendicular anisotropy, and the correlated dynamic permeability spectrum measured over the frequency range of 0.5-7 GHz shows a high resonance frequency. The study on the relation R ∼ T shows that the resistivity of the thin film has a minimum near room temperature and tends to saturation as the temperature approaches zero, exhibiting a behavior reminiscent of Kondo scattering. However, as the substrate temperature increases to 973 K, the films possess an in-plane anisotropy and lower H c . The resistivity exhibits a transition from metal to insulator characterized by a maximum of resistivity at 220 K.

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“…Xi et al [ 14 ] reported that the degradation of the soft magnetic properties of FeNiSm films could be avoided by the insertion of a Ta interlayer, which may be used in other magnetic thin films when the degradation of the soft magnetic properties results from the growth of columnar grains. The in-plane hysteresis loop of a 200 nm FeNiSm sample with one 6 nm Ta interlayer exhibited a secondary overturning phenomenon because of the slightly different magnetic properties of the two separated FeNiSm layers.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ta Interlayers on Texture and Magnetic Properties of FeSi Films with Micrometer Thickness

Zhang

Bao

et al. 2022

Materials

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Magnetized soft ferromagnetic films with micrometer thickness were studied. A FeSi film, with a total thickness of 2000 nm, separated by 10 nm-thick Ta interlayers, was fabricated using the direct-current magnetron sputtering technique. The thickness of each FeSi layer between adjacent Ta layers was 100 nm. Hysteresis loop measurement was used to characterize the magnetic properties of the layer. X-ray diffraction patterns and high-resolution transmission electron microscopy were used to characterize its texture. The experimental results showed that the FeSi film separated by Ta interlayers exhibited a lower saturation magnetization and a higher coercivity than those of the 1140 nm-thick FeSi film. The insertion of Ta interlayers resulted in the disappearance of the crystal plane of FeSi (221), and better texture of the crystal plane of FeSi (210). The FeSi film exhibited a crystal plane of FeSi (210) with a bcc crystalline structure. The Ta interlayers were partially amorphous, exhibiting crystal plane of Ta (002) and TaSi2 (310). The matching of magnetic properties between interlayers and soft magnetic layers played an important role in maintaining its soft magnetic properties.

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Recovery of soft magnetic properties of FeNiSm films by Ta interlayer

Cited by 13 publications

References 26 publications

In-plane Uniaxial Anisotropy and Magnetization Reversal Mechanism of FeCo Films by Strip Pattern

In-plane Uniaxial Anisotropy and Magnetization Reversal Mechanism of FeCo Films by Strip Pattern

The Effect of Substrate Temperature on Magnetic and Electrical Properties of (CeO2)14Fe86 Films

Effect of Ta Interlayers on Texture and Magnetic Properties of FeSi Films with Micrometer Thickness

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