Effects of Magnetic Properties of L10-CoPt based Bit Patterned Media with Tilted-Easy Axis on Switching Field at Areal Density over 2 Tb/in2

Arkom Kaewrawang

doi:10.4028/www.scientific.net/AMM.781.207

Paper Titles

The Potential of Routers Configured with the Switch Matrix by RTL
p.189

Free Layer Characterization of TMR Head with Multi-Stripe Height by Using Ferro Magnetic Resonance Analyzer (FMRA)
p.195

Study the Effect of Stripe Height and Read Track Width on Blocking Temperature
p.199

Signal Analysis of Scratch-Detection on Magnetic Disc by Using Light Reflection Approach
p.203

Effects of Magnetic Properties of L1₀-CoPt based Bit Patterned Media with Tilted-Easy Axis on Switching Field at Areal Density over 2 Tb/in²
p.207

Role of Intergrain and Intragrain Coupling on Switching Field of Granular Exchange Coupled Composite Media Using Microwave Assisted Magnetic Recording
p.211

Investigation of Perpendicular Magnetic Recording Footprint by Spin-Stand Microscopy
p.215

Micromagnetic Modeling for a Study of Spin Transfer Torque in Ferromagnetic Materials
p.219

Equalizer Design for Bit-Patterned Media Recording System Based on ISI and ITI Estimations by Cross Correlation Functions
p.223

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 781Effects of Magnetic Properties of L10-CoPt based...

Effects of Magnetic Properties of L1₀-CoPt based Bit Patterned Media with Tilted-Easy Axis on Switching Field at Areal Density over 2 Tb/in²

Abstract:

Decrease of a switching field, H_sw, of the magnetic media with high magnetocrystalline anisotropy constant, K_u, can be handled by tilted-easy axis. Not only tilting easy direction of crystal but also optimum magnetic properties can improve writability. The effects of K_u and saturation magnetization, M_s, of L1₀-CoPt material of BPM with 45° tilted-easy axis are investigated in this article. The object oriented micromagnetic framework package based on Landau - Lifshitz - Gilbert equation has been used to analyze the magnetic properties of media in this paper. The results indicate that the H_sw decreases with decreasing K_u and increasing M_s. To achieve the H_sw lower than the maximum write head field, the K_u and M_s values should not be over 1.30 MJ/m³ and should exceed 0.30 MA/m, respectively.

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Periodical:

Applied Mechanics and Materials (Volume 781)

Pages:

207-210

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.781.207

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Online since:

August 2015

Authors:

Arkom Kaewrawang*

Keywords:

L 1₀-CoPt, Magnetocrystalline Anisotropy Constant, Saturation Magnetization, Switching Field, Tilted-Easy Axis

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