Morphology, structure, and magnetic properties of electrodeposited Ni films obtained from different pH solutions

Boubatra, M.; Azizi, A.; Schmerber, G.; Dinia, A.

doi:10.1007/s10854-011-0366-1

Cited by 19 publications

(12 citation statements)

References 24 publications

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“…Soft and hard magnetic thin films have a wide range of applications in electronic devices, such as micro electromechanical system (MEMS) devices, magnetic recording head, reading heads and data storage media [1][2][3]. One of the most important aims in the field of information technology known as ''IT'' is increasing data storage density on hard disk drivers.…”

Section: Introductionmentioning

confidence: 99%

“…One of the most important aims in the field of information technology known as ''IT'' is increasing data storage density on hard disk drivers. This issue has led to new requirements for the write-head materials, which can not be met by Ni 80 Fe 20 [2][3][4][5][6]. The first requirement is high saturation magnetization (Bs [ [ 1 T), in order to write magnetic signal on the recording media with very high coercivity.…”

Section: Introductionmentioning

confidence: 99%

“…The second requirement is low coercivity (Hc), in order to minimize hysteresis losses. The third is high electrical resistivity to suppress eddy currents [2][3][4]. Co-Fe thin films are strong candidates for application in high density magnetic recording head due to their high saturation magnetization.…”

Section: Introductionmentioning

confidence: 99%

“…However, electroplating is often preferred to sputtering due to some electrodeposition advantages such as simplicity and cost-effectiveness [22][23][24][25]. The traditional baths, used for deposition soft magnetic thin films, are additive free and have low pH (*2.8) [2,3,7]. These CoFe baths suffer from instability due to formation Fe(OH) 3 and also from formation microvoids because of evolution of H 2 during electrodeposition [26,27].…”

Section: Introductionmentioning

confidence: 99%

“…The traditional baths, used for deposition soft magnetic thin films, are additive free and have low pH (*2.8) [2,3,7]. These CoFe baths suffer from instability due to formation Fe(OH) 3 and also from formation microvoids because of evolution of H 2 during electrodeposition [26,27]. In this study, no acid was added into baths.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

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%