Fe–Co–Al–O soft magnetic films for main pole of CF-SPT head and underlayer of perpendicular double-layered media

Shintaku, K.; Ise, K.; Kiya, Takanori; Yamakawa, K.; Ouchi, Kazuhiro

doi:10.1016/j.jmmm.2004.10.044

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Dependences Of Soft Underlayer Thickness1

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Cited by 6 publications

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“…The recording layer of the media was CoPtCr-SiO 2 [10,11] and the SUL was Fe-Co-Al-O [12] with B S of 2.4 T. The thicknesses of the SUL were 50, 100 and 300 nm. The coercivity and the M-H loop slope parameter a is 4300 Oe and 2.2, respectively.…”

Section: Dependences Of Soft Underlayer Thicknessmentioning

confidence: 99%

Cusp-field single-pole head with narrow trailing gap

Ise

Yamakawa

Honda

et al. 2005

Journal of Magnetism and Magnetic Materials

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Section: Dependences Of Soft Underlayer Thicknessmentioning

confidence: 99%

Cusp-field single-pole head with narrow trailing gap

Ise

Yamakawa

Honda

et al. 2005

Journal of Magnetism and Magnetic Materials

Self Cite

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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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Highly-Oriented High-Bs Fe-Co Soft Underlayer for High Density Perpendicular Recording Media

Shintaku

2006

INTERMAG 2006 - IEEE International Magnetics Conference

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Fe–Co–Al–O soft magnetic films for main pole of CF-SPT head and underlayer of perpendicular double-layered media

Cited by 6 publications

References 7 publications

Cusp-field single-pole head with narrow trailing gap

Cusp-field single-pole head with narrow trailing gap

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

Highly-Oriented High-Bs Fe-Co Soft Underlayer for High Density Perpendicular Recording Media

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