Journal Article10.1007/S11249-017-0860-6
Material Transfer Inside Head Disk Interface for Heat Assisted Magnetic Recording
22
TL;DR: In this paper, material transfer within the head disk interface (HDI) under heat assisted magnetic recording (HAMR) conditions is studied and the mechanisms of material transfer are explored via experiments and modeling.
read more
Abstract: Heat assisted magnetic recording (HAMR) promises to deliver higher storage areal density than the current perpendicular magnetic recording products. Laser heating is implemented in HAMR to achieve magnetic writing of the very high coercivity media. However, the high temperature environment creates several reliability challenges for the head disk interface (HDI). In this paper, material transfer within the HDI under HAMR recording conditions is studied. The mechanisms of material transfer are explored via experiments and modeling. This study revealed that temperature difference and mechanical interaction between the head and media are the main mechanisms for material transfer inside the HDI. Possible methods to remove the material are also discussed in this paper.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
ReaxFF Reactive Molecular Dynamics Simulations of Mechano-Chemical Decomposition of Perfluoropolyether Lubricants in Heat-Assisted Magnetic Recording
TL;DR: A thorough understanding of the decomposition of perfluoropolyether (PFPE) lubricants is crucial to achieve heat-assisted magnetic recording (HAMR) as discussed by the authors, in contrast to previous studies, which focused o...
28
A Model for Lubricant Transfer from Media to Head During Heat-Assisted Magnetic Recording (HAMR) Writing
TL;DR: In this paper, the authors developed a continuum model that predicts the head-to-disk lubricant transfer during heat-assisted magnetic recording (HAMR) writing, which simultaneously determines the thermocapillary shear stress-driven deformation and evaporation of the lubricant film on the disk, the convection and diffusion of the vapor phase lubricant in the air bearing and the evolution of the condensed lubricant on the slider.
17
Investigation of heat transfer across a nanoscale air gap between a flying head and a rotating disk
TL;DR: In this paper, the authors developed a numerical model to predict the temperature profile and the fly height for a flying slider over a rotating disk, and compared their simulations with touchdown experiments performed with a flying Thermal Fly-Height Control (TFC) slider with a near-surface Embedded Contact Sensor (ECS), which helps to detect the temperature change.
16
Viscoelastic Lubricant Deformation and Disk-to-Head Transfer During Heat-Assisted Magnetic Recording
TL;DR: In this paper, a modified Reynolds lubrication equation for the viscoelastic fluid that employs the linear Maxwell constitutive model was used to develop a model that predicts the disk-to-head lubricant transfer during HAMR writing.
12
Effect of Rheology and Slip on Lubricant Deformation and Disk-to-Head Transfer During Heat-Assisted Magnetic Recording (HAMR)
TL;DR: In this paper, a modification to the traditional Reynolds lubrication equation using the linear Maxwell constitutive equation and a slip boundary condition was introduced to predict the media-to-head transfer during heat-assisted magnetic recording (HAMR).
11
References
"Dip-Pen" Nanolithography
TL;DR: A direct-write "dip-pen" nanolithography (DPN) has been developed to deliver collections of molecules in a positive printing mode, making DPN a potentially useful tool for creating and functionalizing nanoscale devices.
3K
Heat Assisted Magnetic Recording
Mark H. Kryder,Edward Charles Gage,Terry McDaniel,William Albert Challener,Robert Earl Rottmayer,Ganping Ju,Yiao-Tee Hsia,Mehmet Fatih Erden +7 more
- 02 Dec 2008
TL;DR: The challenges for heat-assisted magnetic recording are surveyed and the progress that has been made in addressing them are surveyed.
1.2K
Bit-Patterned Magnetic Recording: Theory, Media Fabrication, and Recording Performance
Thomas R. Albrecht,Hitesh Arora,Vipin Ayanoor-Vitikkate,J.-M. L. Beaujour,Daniel Bedau,David Berman,Alexei Bogdanov,Yves-Andre Chapuis,Julia D. Cushen,E. Dobisz,Gregory S. Doerk,He Gao,Michael Grobis,Bruce A. Gurney,Weldon Mark Hanson,Olav Hellwig,Toshiki Hirano,Pierre-Olivier Jubert,Dan S. Kercher,Jeffrey S. Lille,Zuwei Liu,C. Mathew Mate,Yuri N. Obukhov,Kanaiyalal C. Patel,Kurt A. Rubin,Ricardo Ruiz,Manfred Ernst Schabes,Lei Wan,Dieter Weller,Tsai-Wei Wu,En Yang +30 more
TL;DR: In this article, a bit-patterned media (BPM) fabrication method was proposed for magnetic data recording at > 1 Tb/in 2 and circumvents many of the challenges associated with extending conventional granular media technology.
510
A model for lubricant flow from disk to slider
TL;DR: In this paper, a model is presented that calculates the equilibrium lubricant thickness on a slider, resulting from a steady state where net inflow from disk evaporation equals net outflow from evaporic back to the disk, and flow to the slider back end from air shear.
76
Write-Induced Head Contamination in Heat-Assisted Magnetic Recording
James Dillon Kiely,Paul M. Jones,Yang Yang,John L. Brand,Manuel Charles Anaya-Dufresne,Patrick C. Fletcher,Florin Zavaliche,Yvete Toivola,John Charles Duda,Michael Thomas Johnson +9 more
TL;DR: In this article, the authors present the current understanding of the driving forces, growth mechanisms, and growth rates of write-induced head contamination, and the impacts of contamination on head temperatures and thermal gradient is presented.
45