Synthesis, Structural, and Magnetic Properties of Fe Thin Films

Bensehil, I.; Kharmouche, A.; Bourzami, A.

doi:10.1007/s10948-016-3669-x

Cited by 12 publications

(3 citation statements)

References 10 publications

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“…Getman et al [18] found that the grain size and grain aspect ratio will increase as the thickness (in the range of 0.1-1 µm) increases and will show the easy magnetization axis in the plane. Bourzami et al [19] found that when the thickness is thin (48 nm), the coercive force decreases slightly as the thickness increases. When the threshold is exceeded, the coercive force increases as the film thickness increases; Tripathi et al's study further verified this conclusion [20].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Sputtering Power on the Structure, Morphology and Magnetic Properties of Fe Films

Zhou

Wei

et al. 2020

Metals

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In this paper, the radio frequency (RF) magnetron sputtering (MS) method was utilized to fabricate multiple sets of the iron film samples under different sputtering powers. With the help of X-ray diffraction (XRD), scanning electron microscopy (SEM), atomic force microscopy (AFM) and vibrating sample magnetometer (VSM), how the sputtering power affected the structure, morphology and magnetic properties of the iron film was studied. XRD results showed that all Fe films have a polycrystalline bcc structure and (110) preferred orientation. According to the Bragg equation calculation, the larger the sputtering power, the larger the average grain size, which is consistent with the results of AFM particle size analysis. The main reason is that the sputtering power affects the grain growth mode. As the sputtering power increases, it gradually changes from a small island-like growth to a thick columnar growth. However, from the surface morphology and height profile, we saw that the iron film deposited under 230 W had the most uniform grain size distribution and the grain size was relatively small. This is why thin films deposited under this condition have the best soft magnetic properties. The saturation magnetization (Ms) reaches 1566 emu/cm3, coercivity (Hc) is 112 Oe, and squareness ratio (Mr/Ms) is 0.40. Therefore, iron film prepared under 230 W has good comprehensive properties (highest Ms, lower Hc and Mr/Ms) that provide an experimental basis for further thin film research work.

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Section: Introductionmentioning

confidence: 99%

Effect of the Sputtering Power on the Structure, Morphology and Magnetic Properties of Fe Films

Zhou

Wei

et al. 2020

Metals

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“…A magnetic anisotropy with an in-plane easy magnetization direction was obtained for the Fe 70 Pd 30 antidot arrays (see Figure 3 b). Apart from the causes outlined for the continuous thin films, nanoholes induce a strong local shape anisotropy that tends to align the magnetization parallel to their edges [ 19 , 35 ]. Consequently, domain wall displacements result in the in-plane magnetization process, leading to hysteresis loops with a high squareness ratio [ 26 ].…”

Section: Resultsmentioning

confidence: 99%

Dependence of the Magnetization Process on the Thickness of Fe70Pd30 Nanostructured Thin Film

et al. 2020

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Fe–Pd magnetic shape-memory alloys are of major importance for microsystem applications due to their magnetically driven large reversible strains under moderate stresses. In this context, we focus on the synthesis of nanostructured Fe70Pd30 shape-memory alloy antidot array thin films with different layer thicknesses in the range from 20 nm to 80 nm, deposited onto nanostructured alumina membranes. A significant change in the magnetization process of nanostructured samples was detected by varying the layer thickness. The in-plane coercivity for the antidot array samples increased with decreasing layer thickness, whereas for non-patterned films the coercive field decreased. Anomalous coercivity dependence with temperature was detected for thinner antidot array samples, observing a critical temperature at which the in-plane coercivity behavior changed. A significant reduction in the Curie temperature for antidot samples with thinner layer thicknesses was observed. We attribute these effects to complex magnetization reversal processes and the three-dimensional magnetization profile induced by the nanoholes. These findings could be of major interest in the development of novel magnetic sensors and thermo-magnetic recording patterned media based on template-assisted deposition techniques.

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“…Thus, all the samples studied in this work were developed, by evaporation, in the built ultra vacuum of this technique in for objective the developed of the thin layers of high crystalline quality, with abrupt interfaces; this required inevitably the use of the magnetic techniques of characterization ex-situ who allows to control the correlation between the magnetic properties of iron thin film and the roughness of the interfaces /or with the coercivity of samples. Various works on the relationship between surface roughness and coercivity, of thin and ultrathin films, have been carried out [1][2][3]. Magnetic anisotropy of these structures was examined using a magneto optical Kerr effect (MOKE).…”

Section: Introductionmentioning

confidence: 99%

The Study of Magnetic Properties of Fe/Ag/Cr Thin Films

Boukhalfa

2018

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(300Å)Fe films were deposited, on MgO (001) single crystalline substrate with various buffer layer thickness tAg (Å) / (75Å) Cr. The magnetic properties of the Fe films were measured by magneto-optic Kerr effect (MOKE) technique. The MOKE measurements provided the tAg buffer layer thickness dependence of the hysteresis loops and the change of loop shapes with the surface roughness. It was found that the magnetization reversal process changed with the surface roughness. Magnetization rotation dominated the magnetization reversal for the smoothest films. As the films roughened, the domain-wall pinning set in, eventually dominating the magnetization reversal for the roughest films. Additionally, the magnetic uniaxial anisotropy in the Fe films disappeared as the roughness parameters increased. It was also found from MOKE that the surface roughness strongly affected the coercivity.

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Synthesis, Structural, and Magnetic Properties of Fe Thin Films

Cited by 12 publications

References 10 publications

Effect of the Sputtering Power on the Structure, Morphology and Magnetic Properties of Fe Films

Effect of the Sputtering Power on the Structure, Morphology and Magnetic Properties of Fe Films

Dependence of the Magnetization Process on the Thickness of Fe70Pd30 Nanostructured Thin Film

The Study of Magnetic Properties of Fe/Ag/Cr Thin Films

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