Compositional inhomogeneity in electroless-deposited CoNiP films studied by spin-echo 59Co nuclear magnetic resonance

Homma, Takayuki; Sezai, Yuji; Osaka, Tetsuya; Maeda, Yasushi; Donnet, D.M.

doi:10.1016/s0304-8853(97)00200-x

Cited by 20 publications

(14 citation statements)

References 20 publications

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“…9 in Ref. [14]) and are larger than those reported for Co-Ni-Mn-P in Ref. [20] (0.3-0.5 kJ/m 3 ), indicating great potential of these materials for use in magnetic MEMS.…”

Section: Magnetic Propertiesmentioning

confidence: 58%

“…This behavior is indicative of a large perpendicular anisotropy, probably originated by the strong (0 0 0 2) orientation of the hcp phase and/or by the columnar microstructure. Hard magnetic properties in these alloys are usually ascribed to the segregation of Ni-P at grain boundaries, forming defect sites capable to behave as pinning sites against domain wall motion [14]. Fig.…”

Section: Magnetic Propertiesmentioning

confidence: 99%

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Electrodeposition of hard magnetic films and microstructures

Pattanaik

Kirkwood

et al. 2007

Electrochimica Acta

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“…9 in Ref. [14]) and are larger than those reported for Co-Ni-Mn-P in Ref. [20] (0.3-0.5 kJ/m 3 ), indicating great potential of these materials for use in magnetic MEMS.…”

Section: Magnetic Propertiesmentioning

confidence: 58%

Section: Magnetic Propertiesmentioning

confidence: 99%

Electrodeposition of hard magnetic films and microstructures

Pattanaik

Kirkwood

et al. 2007

Electrochimica Acta

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“…In those days, we found an interesting phenomenon: the easy axis direction for magnetization of a CoNi‐based magnetic thin film changed from lateral to perpendicular when some metals were added to the film 27. After our investigations of electroless CoNi‐based films, various perpendicular magnetization films such as CoNiMnP, CoNiReP, and CoNiP were fabricated, and perpendicular recording media with those films as recording layers were prepared and evaluated 28–72…”

Section: Creation Of Magnetic Thin Films For Magnetic Recording Drivesmentioning

confidence: 95%

Creation of highly functional thin films using electrochemical nanotechnology

Osaka

2004

The Chemical Record

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This overview describes the results of our recent study of the application of electrochemical nanotechnology to the fabrication of magnetic recording materials, interconnects in ultra-large-scale integrated (ULSI) devices, energy storage materials, and on-chip biosensors. It is important to note that electrochemical processes play significant roles in developing and fabrication such sophisticated materials and devices. In the field of magnetic recording, electrodeposition methods for preparing CoNiFe and CoFe soft magnetic thin films with a high saturation magnetic flux density were newly developed, and the significant issues for obtaining those films are highlighted. In the area of ULSI interconnects, we developed a technique using a self-assembled monolayer (SAM) for direct bonding of the interconnect layer to SiO2, and proposed a novel electroless deposition method for fabricating a diffusion barrier layer. In the field of batteries, electrodeposited SnNi alloy was proposed as a future anode material for Li batteries, and electrochemical MEMS processes were shown to be useful for fabricating micro-sized direct methanol fuel cells (DMFCs) as portable batteries for electronics applications. In the area of chemical sensors, we developed a new process for fabricating field effect transistors (FETs) modified with SAMs for on-chip biosensing applications.

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“…Hard magnetic properties could be enhanced due to the segregation of P at grain boundaries, forming defects sites capable to behave as pinning sites against domain wall motion. 16 In this case, the different structure of two samples was another main factor that contributed to hard magnetic properties. Then, the combination of the high magnetic anisotropy with the hexagonal phase and the presence of non-magnetic precipitates could hinder domain wall motion, which caused high coercivity for CoPtMo films.…”

Section: Electrochemical Analysismentioning

confidence: 97%

Electrodeposition of CoPtMo magnetic films with incorporation of phosphorus

Lou

Wei

et al. 2013

Surface Engineering

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Electrodeposition as a kind of significant electrochemical technique was used to prepare CoPtMo magnetic materials on copper substrate from an alkaline electrolyte. The influence of hypophosphite addition on the deposition process, alloy content, microstructure and magnetic properties of CoPtMo thin films was studied. The films that were prepared from the electrolytes without hypophosphite exhibited an fcc structure, with higher Pt percentage but lower coercivity. The presence of hypophosphite shifted alloy deposition to more negative potentials, limited the platinum percentage, caused higher Co content and exhibited an hcp structure. It was found that much higher coercivity of CoPtMo(P) than that of CoPtMo was mainly due to the incorporation of P at the grain boundaries.

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Compositional inhomogeneity in electroless-deposited CoNiP films studied by spin-echo 59Co nuclear magnetic resonance

Cited by 20 publications

References 20 publications

Electrodeposition of hard magnetic films and microstructures

Electrodeposition of hard magnetic films and microstructures

Creation of highly functional thin films using electrochemical nanotechnology

Electrodeposition of CoPtMo magnetic films with incorporation of phosphorus

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