Soft magnetic properties, high frequency characteristics, and thermal stability of co-sputtered FeCoTiN films

Zhang, Xudong; Wang, Shu; Zhou, Jùn; Li, Jiangong; Jiao, Dongmao; Kou, Xiaoming

doi:10.1016/j.jallcom.2008.06.080

Cited by 19 publications

(8 citation statements)

References 23 publications

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“…Recent advances in the area of nanocrystalline materials have shown that grain size reduction in ferromagnetic materials can result in very significant reduction in coercivity value of thin films with no effect on their saturation magnetization [9,10]. The other approach, used by many investigators, is addition of elements such as Ni, Zn, N, into Co-Fe system [11][12][13][14][15][16][17][18][19]. Among the alloying elements, copper might be an interesting candidate, due to the fact that copper is a diamagnetic metal and definitely causes reduction in saturation magnetization value.…”

Section: Introductionmentioning

confidence: 99%

Studies of electrical resistivity and magnetic properties of nanocrystalline CoFeCu thin films electrodeposited from citrate-added baths

Mehrizi

Sohi

Shafahian

et al. 2011

J Mater Sci: Mater Electron

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In this study, nanocrystalline CoFeCu thin films were electrodeposited at different current densities from baths with natural pH (around 5.2) and containing 20 g/L citrate sodium. The relationship of films structure with soft magnetic properties and electrical resistivity, which are required for new generation magnetic head core, were investigated. SEM, EDS, XRD, TEM, VSM and four probe-point methods were used for characterization of the deposited films. The deposited films exhibited very uniform and homogenous structure with co-axis grains (confirmed by (111) and (110) poles figures and TEM images) throughout the coating. Overall, it was noticed that increasing current density from 1 to 24 mA/cm 2 reduced both grain size (from 63 to 8 nm) and coercivity (from 20 to 1 Oe) of the films. In addition, plotting Log (Hc) versus Log (D 6 ) demonstrated that the coercivity of the films followed ''D 6 law''. Moreover, increasing current density changed phase structures of the films from FCC (Cu)?FCC (Co) to FCC (Co) and then to FCC (Co)

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Section: Introductionmentioning

confidence: 99%

Studies of electrical resistivity and magnetic properties of nanocrystalline CoFeCu thin films electrodeposited from citrate-added baths

Mehrizi

Sohi

Shafahian

et al. 2011

J Mater Sci: Mater Electron

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“…In addition, these films exhibit thermal stability up to 450 8C. [8] Other articles focus on multilayer films. The structural and magnetic properties of Fe 50 Co 48 V 2 /TiN multilayer films were investigated with regard to possible application in neutron optics.…”

mentioning

confidence: 99%

Multifunctional FeCo/TiN Multilayer Thin Films with Combined Magnetic and Protective Properties

Klever¹,

Stüber²,

Leiste³

et al. 2009

Adv Eng Mater

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Coatings with thicknesses ranging from a few nanometer up to several micrometer produced by physical vapor deposition (PVD) processes have been established in engineering technologies since the early 1980s. In particular, magnetron sputtered wear resistance coatings are industrially established and capable to enhance tool lifetimes significantly. However, in cases where optical inspection of a coating in use is not possible, an intrinsic sensor function of the film would be beneficial. Therefore, the development of wear resistant coatings with an integrated sensor functionality based on the insertion of a magnetoelastic ferromagnetic phase is suggested. In combination with appropriate read-out electronics such a film system would be ready for online monitoring of the coatings' actual state (e.g., strain, temperature, volume loss). This paper focuses on the development of wear resistance coatings which simultaneously supply beneficial mechanical properties as well as ferromagnetic properties optimized for online non-contact read-out applications. Multilayer coatings obtained through alternate stacking of magnetron sputtered TiN and FeCo layers with a nominal total thickness of 1000 nm were produced as a model system meeting the above conditions. The bilayer period was varied down to 2.6 nm while the individual layer thickness ratio t TiN /t FeCo was determined by the deposition rates and maintained constant at a value of about 3/1. The films were vacuum annealed ex situ in a static magnetic field subsequent to the deposition. The constitution of the as-deposited and annealed coatings as well as their mechanical (nanohardness, Young's modulus) and magnetic properties (magnetization hysteresis, frequency-dependent permeability) are described. Finally, the suitability of the coatings for the use in remote-interrogable wear sensor applications is briefly discussed.

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“…They have advantages, such as high frequency operation, miniaturization, and high eld resolution [1][2][3][4]. Among the soft magnetic materials, FeCuNbBSi or so-called Finemet-type alloys are good candidates for such applications due to their excellent magnetic softness.…”

Section: Introductionmentioning

confidence: 99%

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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Soft magnetic properties, high frequency characteristics, and thermal stability of co-sputtered FeCoTiN films

Cited by 19 publications

References 23 publications

Studies of electrical resistivity and magnetic properties of nanocrystalline CoFeCu thin films electrodeposited from citrate-added baths

Studies of electrical resistivity and magnetic properties of nanocrystalline CoFeCu thin films electrodeposited from citrate-added baths

Multifunctional FeCo/TiN Multilayer Thin Films with Combined Magnetic and Protective Properties

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

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