Curvature and skew in heat-assisted magnetic recording

Z Liu, I Gilbert, S Hernandez, C Rea… - IEEE Transactions …, 2018 - ieeexplore.ieee.org
Curvature of recorded bit and skew are two factors limiting further improvement of the areal
density capacity of heat-assisted magnetic recording. Performance degradation due to …

Numerical investigation of compact grid-characteristic schemes for acoustic problems

VI Golubev, AV Shevchenko… - Journal of Physics …, 2021 - iopscience.iop.org
In this paper, an acoustic approximation is considered, which allows to describe the
propagation of longitudinal waves in geological media. For the two-dimensional case, a …

Mechano-Chemical Properties and Tribological Performance of Thin Perfluoropolyether (PFPE) Lubricant Film under Environmental Contaminants

Y Jung, C Yeo - Lubricants, 2023 - mdpi.com
Through molecular dynamics (MD) simulations with ReaxFF potential, the effects of chemical
contaminants on the mechano-chemical properties and tribological performance of …

Application of compact grid-characteristic schemes for acoustic problems

VI Golubev, NI Khokhlov, IS Nikitin… - Journal of Physics …, 2020 - iopscience.iop.org
This work is devoted to the numerical solution of the acoustic problem. It has a lot of
important applications, for example, direct and inverse problems of the seismic survey …

Predicting device-to-device frequency response function variation during high-volume manufacturing of a hardware device

SV Sakhalkar, B Kaplan, R Koosha, H Shindo - Mechanical Systems and …, 2024 - Elsevier
In this study, we present a methodology that combines statistical analysis of measured
population FRFs (Frequency Response Functions) of a hardware device (Product A) with the …

Numerical and experimental investigation of heat transfer across a nanoscale gap between a magnetic recording head and various media

S Sakhalkar, Q Cheng, A Ghafari, Y Ma… - Applied Physics …, 2019 - pubs.aip.org
With the emergence of Heat-Assisted Magnetic Recording and Microwave-Assisted
Magnetic Recording, understanding nanoscale heat transfer at the head-media interface is …

Two strategies to mitigate thermally-induced material buildup in heat-assisted magnetic recording

Q Cheng, RM Tom, DB Bogy - Tribology Letters, 2023 - Springer
Heat-assisted magnetic recording (HAMR), one of the promising hard disk drive
technologies to achieve areal density> 10 Tb/in 2, integrates a laser across its head-disk …

Effect of rheology and slip on lubricant deformation and disk-to-head transfer during heat-assisted magnetic recording (HAMR)

SV Sakhalkar, DB Bogy - Tribology Letters, 2018 - Springer
The high-temperature laser heating during heat-assisted magnetic recording (HAMR)
causes the media lubricant to deform and transfer to the head via evaporation/condensation …

Investigation of heat transfer across a nanoscale air gap between a flying head and a rotating disk

S Sakhalkar, Q Cheng, A Ghafari, D Bogy - Journal of Applied Physics, 2020 - pubs.aip.org
Understanding nanoscale heat transfer at the head–disk interface (HDI) is necessary for
thermal management of hard disk drives (HDDs), especially for heat-assisted magnetic …

Effect of heat conduction on viscoelastic lubricant behavior during heat-assisted magnetic recording (HAMR): A numerical study

Q Liu, L Peng, K Huang, Y Hu, Z Chen, Z Wang… - Materials Today …, 2024 - Elsevier
Heat-assisted magnetic recording (HAMR) is one of the critical technologies to overcome the
areal density limitations of hard disk drives. In order to reveal the behavior of viscoelastic …