Flexible Magnetic Reading/Writing System: Heat-assisted Magnetic Recording

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Taptimthong, P.; Düsing, J.F.; Rissing, L.; Wurz, M.C.: Flexible Magnetic Reading/Writing System: Heat-assisted Magnetic Recording. In: Procedia Technology 26 (2016), S. 72-78. DOI: https://doi.org/10.1016/j.protcy.2016.08.011

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Sum total of downloads: 79

Data storage is one of indispensable technical assets defined in a frame work of Industry 4.0. Among many data storage technologies, inherent magnetic data storage on surfaces of technical components is promising, especially when the components are employed in harsh environments. Comparing with other storage technologies like labels, RFID tags and engraving, the inherent magnetic storage is rewritable and resistant to weathering. High temperature and a high magnetic field, however, can degrade or even delete magnetically stored data. This limitation can be coped with using a medium with higher coercivity that can withstand external magnetic fields and high temperature. As a consequence of higher coercivity, a higher write field is required to magnetize the medium. A design of a flexible write head that is suitable for storage applications on surfaces of technical components, is restricted by head-medium interface criterions, and hence field strength generated from the write head cannot be arbitrary large. To solve this problem, a heat-assisted magnetic recording (HAMR) is proposed as a means to temporarily reduce coercivity of a medium during writing. A realization of a HAMR module and an experiment as well as its positive results are presented in this work.
License of this version: CC BY-NC-ND 4.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2016
Appears in Collections:Fakultät für Maschinenbau

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pos. country downloads
total perc.
1 image of flag of Germany Germany 51 64.56%
2 image of flag of United States United States 5 6.33%
3 image of flag of No geo information available No geo information available 4 5.06%
4 image of flag of China China 3 3.80%
5 image of flag of Japan Japan 2 2.53%
6 image of flag of France France 2 2.53%
7 image of flag of Australia Australia 2 2.53%
8 image of flag of Greece Greece 1 1.27%
9 image of flag of United Kingdom United Kingdom 1 1.27%
10 image of flag of Czech Republic Czech Republic 1 1.27%
    other countries 7 8.86%

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