Heat-assisted magnetic recording — Micromagnetic modeling of recording media and areal density: A review

Hsu, Wu-Hsiao; Victora, R. H.

doi:10.1016/j.jmmm.2022.169973

Cited by 12 publications

(1 citation statement)

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“…While early magnetic storage focused on multi-platters i.e., more disks, subsequent efforts have been focused on lowering the bit grain size to increase storage capacity. An emerging technology is heat-assisted magnetic recording (HAMR), which employs a laser to heat smaller disk regions over a nanosecond time scale to lower bit domain size [ 334 ] and concurrently, alongside increase in areal bit density, multi-actuator systems have also arisen as a way to speed up access times. In both instances, more economical nanofabrication would be beneficial to offset increased costs pertaining to manufacture complexity.…”

Section: Further Application Areasmentioning

confidence: 99%

Advances in lithographic techniques for precision nanostructure fabrication in biomedical applications

Stokes,

Clark,

Odetade

et al. 2023

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Nano-fabrication techniques have demonstrated their vital importance in technological innovation. However, low-throughput, high-cost and intrinsic resolution limits pose significant restrictions, it is, therefore, paramount to continue improving existing methods as well as developing new techniques to overcome these challenges. This is particularly applicable within the area of biomedical research, which focuses on sensing, increasingly at the point-of-care, as a way to improve patient outcomes. Within this context, this review focuses on the latest advances in the main emerging patterning methods including the two-photon, stereo, electrohydrodynamic, near-field electrospinning-assisted, magneto, magnetorheological drawing, nanoimprint, capillary force, nanosphere, edge, nano transfer printing and block copolymer lithographic technologies for micro- and nanofabrication. Emerging methods enabling structural and chemical nano fabrication are categorised along with prospective chemical and physical patterning techniques. Established lithographic techniques are briefly outlined and the novel lithographic technologies are compared to these, summarising the specific advantages and shortfalls alongside the current lateral resolution limits and the amenability to mass production, evaluated in terms of process scalability and cost. Particular attention is drawn to the potential breakthrough application areas, predominantly within biomedical studies, laying the platform for the tangible paths towards the adoption of alternative developing lithographic technologies or their combination with the established patterning techniques, which depends on the needs of the end-user including, for instance, tolerance of inherent limits, fidelity and reproducibility.

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Section: Further Application Areasmentioning

confidence: 99%