Abstract
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.
Original language | English |
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Article number | 6971780 |
Journal | IEEE Transactions on Magnetics |
Volume | 50 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2014 Nov 1 |
Keywords
- Micromagnetic simulation
- microwave-assisted magnetic recording
- shingled recording
- tilted spin torque oscillator
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering