Presentation Information

1:15 PM - 1:30 PM JST(4:15 AM - 4:30 AM UTC)Candidate for Academic Incentive Award

[C-15-24]Acceleration of Electromagnetic-Thermal Coupled Analysis for Near-Field Transducer in HAMR

◎Akira Masuda¹, Seiya Kishimoto¹, Shinichiro Ohnuki¹ (1. Nihon Univ.)

Keywords:

HAMR,Near-Field Transducer,Auxiliary Differential Equation-FDTD,coupled analysis,high-density HDD

A Near-Field Transducer (NFT) is indispensable for the realization of Heat-Assisted Magnetic Recording (HAMR) as a next-generation high-density HDD technology, and evaluating the internal temperature transient response of the transducer is critical. The authors have previously investigated an electromagnetic-thermal coupled analysis method using the Auxiliary Differential Equation-FDTD (ADE-FDTD) method and the explicit finite difference method; however, reducing analysis time due to increasing computational costs has been a challenge. In this report, we investigate the acceleration of calculations by increasing the thermal update interval after the electromagnetic field reaches a steady state and optimizing computational processing, and subsequently verify its accuracy.

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