Micromagnetic Model Simulation of Spin-Torque Oscillator and Write Head for Microwave-Assisted Magnetic Recording - Spin Injection Layer with In-Plane Anisotropy -
APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL(2019)
Abstract
Micromagnetic simulations were carried out to obtain stable oscillation of a spin transfer torque oscillator (STO) inserted into the gap between the main pole and trailing shield of a write head. We assumed a spin injection layer with in-plane anisotropy. Results show that reducing the magnetostatic interaction between the write head and the STO is the key to obtaining stable STO oscillation.
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Key words
micromagnetic simulations,microwave-assisted magnetic recording,spin-torque oscillator,write head
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