Algorithm of Micromagnetic Simulation for Thermally Activated Noise in Magnetoresistive Head(Recording systems & heads (I),The 8th Asian Symposium on Information Storage Technology (ASIST-8))
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概要
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A micromagnetic model is built up to analyze the thermal magnetic noise of GMR heads, where the relationship of the magnetic evolution time interval Δt in solving the Landau-Liftshitz equation and the thermal activate time interval Δt_1 is analyzed. When Δt>Δt_1, the simulated thermal noise is unstable and sensitive to Δt; when Δt is below 1ps and Δt_1 is tens of pico-seconds, although it is against the Brown's presumption, the simulation results are closer to experiments.
- 2006-11-02
著者
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Wei Dan
Key Laboratory Of Advanced Materials Department And Engineering Tsinghua University
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Wei Dan
Lab Of Advanced Materials Department Of Materials Science And Engineering Tsinghua University
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SHE Shengxian
Lab of Advanced Materials, Dept. of Materials Science and Engineering, Tsinghua University
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She Shengxian
Lab Of Advanced Materials Dept. Of Materials Science And Engineering Tsinghua University
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