Simulation of expected areal density gain for heat assisted magnetic recording

R. H. Victora, Y. Dong, P. Huang, S. Wang, Y. Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Areal density increases in conventional perpendicular magnetic recording are becoming increasingly difficult to achieve. Heat assisted magnetic recording is viewed as a potential technique to extend magnetic recording into the multiple-terabit range. Over the last 5 years, we have performed extensive simulations of Heat Assisted Magnetic Recording on both granular and bit-patterned media. For this purpose, we represent [1] the behavior of granular media near the Curie temperature with renormalized blocks of spins of order 1 nm3. The change in magnetization of these blocks can then be evaluated using the Landau-Lifshitz-Gilbert equation. The behavior of bit patterned media is typically evaluated [2] using an atomistic approach. Optical spots are calculated using a finite difference time domain technique and heat flow is evaluated using the usual Fourier differential equation.

Original languageEnglish (US)
Title of host publication2015 IEEE International Magnetics Conference, INTERMAG 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479973224
DOIs
StatePublished - Jul 14 2015
Event2015 IEEE International Magnetics Conference, INTERMAG 2015 - Beijing, China
Duration: May 11 2015May 15 2015

Publication series

Name2015 IEEE International Magnetics Conference, INTERMAG 2015

Other

Other2015 IEEE International Magnetics Conference, INTERMAG 2015
CountryChina
CityBeijing
Period5/11/155/15/15

Fingerprint Dive into the research topics of 'Simulation of expected areal density gain for heat assisted magnetic recording'. Together they form a unique fingerprint.

Cite this