Magnetic Tape for Data Storage: An Enduring Technology

Dee, R.H.

doi:10.1109/jproc.2008.2004311

Cited by 41 publications

(27 citation statements)

References 43 publications

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“…For example, metal wire grid polarizers are already mass produced by the OAD deposition of antireflection FeSi and SiO 2 layers on previously deposited aluminum columnar arrays [87,114,115] (see Section 2.5). Magnetic recording/video tapes are another example where OAD techniques have been successfully employed in large scale production [604][605][606][607].…”

Section: Concluding Remarks: Up-scaling and Industrial Implementationmentioning

confidence: 99%

Perspectives on oblique angle deposition of thin films: From fundamentals to devices

Barranco

Borrás

González‐Elipe

et al. 2016

Progress in Materials Science

618

436

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a b s t r a c tThe oblique angle configuration has emerged as an invaluable tool for the deposition of nanostructured thin films. This review develops an up to date description of its principles, including the atomistic mechanisms governing film growth and nanostructuration possibilities, as well as a comprehensive description of the applications benefiting from its incorporation in actual devices. In contrast with other reviews on the subject, the electron beam assisted evaporation technique is analyzed along with other methods operating at oblique angles, including, among others, magnetron sputtering and pulsed laser or ion beam-assisted deposition techniques. To account for the existing differences between deposition in vacuum or in the presence of a plasma, mechanistic simulations are critically revised, discussing well-established paradigms such as the tangent or cosine rules, and proposing new models that explain the growth of tilted porous nanostructures. In the second part, we present an extensive description of applications wherein oblique-angle-deposited thin films are of relevance. From there, we proceed by considering the requirements of a large number of functional devices in which these films are currently being utilized (e.g., solar cells, Li batteries, electrochromic glasses, biomaterials, sensors, etc.), and subsequently describe how and why these nanostructured materials meet with these needs.

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Section: Concluding Remarks: Up-scaling and Industrial Implementationmentioning

confidence: 99%

Perspectives on oblique angle deposition of thin films: From fundamentals to devices

Barranco

Borrás

González‐Elipe

et al. 2016

Progress in Materials Science

618

436

View full text Add to dashboard Cite

show abstract

“…With its much lower cost, the magnetic tape recording is playing an important role in big data storage. 20 5.1.2. Magnetic Nanoparticles as Recording Media.…”

Section: Magnetic Nanoparticles For Data Storagementioning

confidence: 99%

Organic Phase Syntheses of Magnetic Nanoparticles and Their Applications

et al. 2016

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In the past two decades, the synthetic development of magnetic nanoparticles (NPs) has been intensively explored for both fundamental scientific research and technological applications. Different from the bulk magnet, magnetic NPs exhibit unique magnetism, which enables the tuning of their magnetism by systematic nanoscale engineering. In this review, we first briefly discuss the fundamental features of magnetic NPs. We then summarize the synthesis of various magnetic NPs, including magnetic metal, metallic alloy, metal oxide, and multifunctional NPs. We focus on the organic phase syntheses of magnetic NPs with precise control over their sizes, shapes, compositions, and structures. Finally we discuss the applications of various magnetic NPs in sensitive diagnostics and therapeutics, high-density magnetic data recording and energy storage, as well as in highly efficient catalysis.

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“…State-of-the-art magnetic tape drives record data in the form of magnetic transitions in a thin layer of magnetic material, *100 nm thick, that has been deposited onto a plastic substrate that is approximately 5-7 lm thick [1,2]. This flexible magnetic tape is half an inch wide, has a length of up to *1100 m, and is wound onto a reel that is housed in a cartridge.…”

Section: Introductionmentioning

confidence: 99%

Asymmetrically Wrapped Flat-Profile Tape–Head Friction and Spacing

Engelen

Lantz

2015

Tribol Lett

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In this work, we study the friction and spacing between a magnetic data storage tape and a recording head. The tape-head friction force and magnetic spacing are measured as a function of the angles with which the tape is wrapped around the read/write head at 2 and 6 m s -1 tape transport velocity. It is found that the friction force can be described as a linear function of the leading and trailing wrap angles, where the friction force increases for increasing wrap angles. The analysis treats the total friction force as the sum of three components resulting from (1) the leading edge, (2) the head surface, and (3) the trailing edge. Coefficients of friction are calculated for each of the three components from experimental data. The leading edge and head surface components are both dependent on the leading-edge wrap angle and independent of the trailing-edge wrap angle, whereas the trailing-edge component is only dependent on the trailing-edge wrap. In addition, the estimated magnetic spacing is found to decrease with increasing leading-edge wrap angle, but is independent of the trailing-edge wrap angle, even for negative trailing-edge wrap angles. Hence, the trade-off between friction and spacing can be optimized through judicious choice of the wrap angles. In addition, we find that a significant portion of the friction is due to edge friction (as high as 70 % in the case of symmetric wrap). Therefore, we conclude that modifications to the head surface topography to reduce the contact area may not result in a significant reduction in head-tape friction.

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Magnetic Tape for Data Storage: An Enduring Technology

Cited by 41 publications

References 43 publications

Perspectives on oblique angle deposition of thin films: From fundamentals to devices

Perspectives on oblique angle deposition of thin films: From fundamentals to devices

Organic Phase Syntheses of Magnetic Nanoparticles and Their Applications

Asymmetrically Wrapped Flat-Profile Tape–Head Friction and Spacing

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