Micromagnetic Model Analysis of Planar Type Recording Write Heads for High Transfer-Rate Recording

Kanai, Y.; Hosokai, Hidemi; Yamakawa, K.; Yoshida, Kazuo; Greaves, S.J.; Muraoka, H.

doi:10.1109/tmag.2011.2171927

Cited by 6 publications

(2 citation statements)

References 24 publications

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“…A dc coil current of 0.06 A 0p was applied to the magnetic head. The magnetic head and SUL were treated micromagnetically, solving the LLG equation [9]. The write head was discretized into finite-difference method cubes with a side length of 5 nm.…”

Section: A Head Model and Calculation Conditionsmentioning

confidence: 99%

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Model Analysis of Tilted Spin-Torque Oscillator With Magnetic Write Head for Shingled Microwave-Assisted Magnetic Recording

et al. 2014

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A model analysis was used to investigate a spin-transfer torque oscillator (STO) and magnetic write head for shingled microwave-assisted magnetic recording, where the interactions between STO and write head were included. The magnetic head had a tilted main pole (MP)-trailing shield (TS) gap with respect to the medium surface. The STO was placed in the tilted gap and off-center with respect to the MP center axis. The head structure allowed stable STO oscillation due to the lower in-plane field on the STO and large magnetic head field and high field gradient in the cross-track direction due to the wide pole. An off-centered STO in the MP-TS tilted gap had a stable oscillation at the cost of a slight reduction in oscillation amplitude.Index Terms-Micromagnetic simulation, microwave-assisted magnetic recording, shingled recording, tilted spin torque oscillator.

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Section: A Head Model and Calculation Conditionsmentioning

confidence: 99%

“…As was pointed out [9], magnetic saturation is not clear in the planar-type head, therefore, we investigated the field applied to the FGL for head coil currents of 0.03-0.3 AT 0p . As shown in Fig.…”

Section: B Head Fields and The Fields Applied To Stomentioning

confidence: 99%