李鹏

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特任教授

博士生导师

硕士生导师

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职务:特任教授

办公地点:安徽省合肥市金寨路96号北校区融合楼213室

联系方式:+86(0551)63607785

学位:博士

毕业院校:美国圣母大学University of Notre Dame

学科:电子科学与技术

论文成果

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Micromagnetic Simulation of Microwave Assisted Switching in Ni80Fe20 Thin Film Element

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发表刊物:Proc. SPIE

关键字:Ferromagnetic resonance, Micromagnetics, Microwave, Ni80Fe20 thin film element

摘要:The authors demonstrate microwave assisted switching process of Ni80Fe20 thin film element with micromagnetics. Effects of microwave amplitude and frequency on the magnetization reversal were focused. Numerical results showed that the coercivity of Ni80Fe20 thin film element can be reduced by the modification of the microwave field, and the most evident reduction of coercivity was found at resonance frequencies. Considerable Fluctuations of switching fields are found at the natural resonance frequencies and high microwave amplitudes, which can be explained by scattering of nucleation sites induced by the thermal effect of the microwave filed.

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发表时间:2008-11-12