Examination of newly developed metal particle media for &gt;3 gb/in/sup 2/ recording in GMR-based tape systems

Sekiguchi, N.; Kawakami, Kenji; Ozue, T.; Yamaga, M.; Onodera, S.

doi:10.1109/tmag.2005.855246

Cited by 9 publications

(3 citation statements)

References 4 publications

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“…In the most recently established system, the recording density has increased about ten times in this decade using the highly sensitive magnetoresistive head systems [14][15][16]. From the viewpoint of recording density, a smoother media surface exhibits a higher carrier to noise ratio, which makes the higher recording density possible.…”

Section: Tape Drive Systemsmentioning

confidence: 99%

Tribochemistry of Ionic Liquid Lubricant on Magnetic Media

Kondo¹

2012

Advances in Tribology

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The newly synthesized perfluoropolyether (PFPE) ionic liquid whose terminal group is an ammonium salt with a carboxylic acid has better frictional properties when compared to the conventional PFPEs. Stick-slip motion was not observed even for the smooth surface for the modified PFPE tape. The friction is almost independent of the PFPE structure, but depends on the amine structures. The ammonium salt being tightly anchored to the rubbing surface covers uniformly, which leads to better lubricity. The higher dispersive interaction of the hydrophobic group of the amine is endowed with a compensating friction reduction. Steric hindrance of the hydrophilic group causes a high friction. Based on these findings, a saturated long chain ammonium salt is the best selection. Moreover, the modified PFPEs are dissolved in alcohol and hexane, which makes practical use convenient without any environmental problems. These ionic lubricants invented around 1987 have been used for magnetic tapes for about a quarter century because of their good lubricity and are reviewed in this paper.

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Section: Tape Drive Systemsmentioning

confidence: 99%

Tribochemistry of Ionic Liquid Lubricant on Magnetic Media

Kondo¹

2012

Advances in Tribology

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“…In the most recently established system, the recording density has increased about 10 times in this decade using the highly sensitive magneto-resistive head systems [1][2][3]. From the viewpoint of recording density, the smoother media surface exhibits a higher carrier to noise ratio, which makes the higher recording density possible.…”

Section: Introductionmentioning

confidence: 99%

Protic Ionic Liquids with Ammonium Salts as Lubricants for Magnetic Thin Film Media

Kondo

2008

Tribol Lett

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The newly synthesized perfluoropolyether (PFPE) whose terminal group is an ammonium salt with a carboxylic acid has better frictional and anti-corrosion properties when compared to the conventional PFPEs. The friction is almost independent of the PFPE structure, but depends on the amine structures. This modified PFPE uniformly covers the magnetic surfaces; this is why it not only reduces the friction, but also has an effect on the corrosion resistance.

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“…The research on vacuum deposited tapes motivated MP tape manufacturers to improve their products as well, and currently extremely high densities can be obtained (Sekiguchi et al, 2005).…”

Section: Flexible Mediamentioning

confidence: 99%

Magnetic Data Storage: Past Present and Future

Thomson

Abelmann

Groenland

Magnetic Nanostructures in Modern Technology

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The design of media, heads, positioning systems and data detection and coding techniques for various generations of magnetic recording systems are discussed. We will start with current systems, such as longitudinal hard disc and tape. Next we will discuss the near future, where perpendicular recording (thicker films, higher stray fields) will address the problem of thermal stability. In the third section we will give an outlook on future developments (patterned media, thermally assisted recording, self assembled arrays of nanoparticles and probe storage).

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Examination of newly developed metal particle media for >3 gb/in/sup 2/ recording in GMR-based tape systems

Cited by 9 publications

References 4 publications

Tribochemistry of Ionic Liquid Lubricant on Magnetic Media

Tribochemistry of Ionic Liquid Lubricant on Magnetic Media

Protic Ionic Liquids with Ammonium Salts as Lubricants for Magnetic Thin Film Media

Magnetic Data Storage: Past Present and Future

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