Comparative analysis of thin Ni and CoNiMnP magnetic films

Campos, C.; Flacker, Alexander; Moshkalev, Stanislav A.; Nóbrega, Eurípedes Guilherme de Oliveira

doi:10.1016/j.tsf.2012.03.022

Cited by 14 publications

(5 citation statements)

References 22 publications

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“…Adding Mn to FM TMs does not lead to write-pole relevant magnetic properties superior to pure FeCo. Noticably, there are some studies on CoMnP 144 and CoNiMnP 145,146 which indicate saturation magnetisations of l 0 M S > 2 T (see also Guan and Nelson 147 who reported much lower B S values), but due to large crystal anisotropy (with the easy axis perpendicular to the plane of the textured thin films) neither softness nor initial permeability is a match for FeCo. Due to its AFM coupling to Fe, Ni, or Co, Cr is also not a useful additive when seeking high saturation magnetisation alloys or laminates.…”

Section: A Inter-tm Alloys Of Fe Ni and Co: The Feco Championmentioning

confidence: 99%

A review of high magnetic moment thin films for microscale and nanotechnology applications

et al. 2016

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The creation of large magnetic fields is a necessary component in many technologies, ranging from magnetic resonance imaging, electric motors and generators, and magnetic hard disk drives in information storage. This is typically done by inserting a ferromagnetic pole piece with a large magnetisation density M S in a solenoid. In addition to large M S , it is usually required or desired that the ferromagnet is magnetically soft and has a Curie temperature well above the operating temperature of the device. A variety of ferromagnetic materials are currently in use, ranging from FeCo alloys in, for example, hard disk drives, to rare earth metals operating at cryogenic temperatures in superconducting solenoids. These latter can exceed the limit on M S for transition metal alloys given by the Slater-Pauling curve. This article reviews different materials and concepts in use or proposed for technological applications that require a large M S , with an emphasis on nanoscale material systems, such as thin and ultra-thin films. Attention is also paid to other requirements or properties, such as the Curie temperature and magnetic softness. In a final summary, we evaluate the actual applicability of the discussed materials for use as pole tips in electromagnets, in particular, in nanoscale magnetic hard disk drive read-write heads; the technological advancement of the latter has been a very strong driving force in the development of the field of nanomagnetism.

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Section: A Inter-tm Alloys Of Fe Ni and Co: The Feco Championmentioning

confidence: 99%

A review of high magnetic moment thin films for microscale and nanotechnology applications

et al. 2016

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“…Composition uniformity is one of the main factor to result in the property improvement. Campos et al investigated the CoNiMnP thin film alloy system and showed that the film with the composition of 78% of Co and 14% of Ni can have the best permanent magnetic characteristics, which are H c : 153.59 kA m −1 , B r : 0.05 T, and ( ) BH max : 7.56 kJ m −3 , respectively [18]. EDS line scanning results in figure 4 show the composition variance of the magnetic nanowire is 50% smaller while the wire is synthesized using the pulse-electroplating process.…”

Section: Resultsmentioning

confidence: 99%

Stacked pulse-electroplated CoNiMnP–AAO nanocomposite permanent magnets for MEMS

Wu¹,

Chao²,

Cheng

2015

J. Micromech. Microeng.

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The paper presents a CMOS compatible pulse-electroplating technique combined with a low temperature bonding process for the synthesis of CoNiMnP–AAO (anodic alumina oxide) nanocomposite films and the fabrication of stacked composite permanent magnets (PMs). The magnetic nanocomposite film exhibits the best characteristics of the coercivity of 2472 Oe, remanence of 4000 G, and of 16.13 kJ m−3, in the existing CoNiMnP systems. Meanwhile, a surface magnetic flux density of 9.2 mT generated by a 15-layer-stacked composite PM with a volume of 9 mm3 has shown the potential for various magnetic microelectromechanical systems (MEMS) fabrication using the nanocomposite material.

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“…The vias were then filled with electroless NiP [22] (after treatment with stannous and palladium ions) and electrolytic Au. Another photolithography process and wet etch were performed to produce the pads.…”

Section: A Fabrication Technique Processmentioning

confidence: 99%

Development of MCM-D Technology with Photosensitive Benzocyclobutene

Adamo¹,

Flacker²,

Cavalcanti³

et al. 2020

JICS

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This paper evaluates and compares the development of Multi-Chip Module Deposited (MCM-D) technology using photosensitive benzocyclobutene (BCB) with the non-photosensitive BCB to fabricate passive devices. The polymer was used to isolate the metal/interconnection layers and also as the dielectric for the capacitors. Ni-P/Au was used as the conductor film and Ta2N as the resistor film. The resistors’ sheet resistance was measured with both transfer length method (TLM) and direct measurement while the measurements of the capacitors and inductors required the use of a Vector Network Analyzer (VNA) and some mathematical algorithms.

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Comparative analysis of thin Ni and CoNiMnP magnetic films

Cited by 14 publications

References 22 publications

A review of high magnetic moment thin films for microscale and nanotechnology applications

A review of high magnetic moment thin films for microscale and nanotechnology applications

Stacked pulse-electroplated CoNiMnP–AAO nanocomposite permanent magnets for MEMS

Development of MCM-D Technology with Photosensitive Benzocyclobutene

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