Magnetic recording assisted by spin torque oscillator with a radio frequency current bias
作者： Wenyu Chen , Joe Smyth
DOI:
关键词: Electrical engineering 、 Oscillation 、 Bias tee 、 Magnetization 、 Physics 、 Optoelectronics 、 Direct current 、 Shield 、 Process (computing) 、 Current (fluid) 、 Radio frequency
摘要: A design is disclosed for a microwave assisted magnetic recording device wherein direct current and rf are simultaneously injected from bias tee into spin transfer oscillator (STO) between main pole write shield to improve the assist process. The STO oscillation layer (OL) has large angle magnetization frequency that locked medium bit resonance f0 when f=f0 threshold density applied. Alternatively, OL may be adjusted closer third advantage lowering both during grounded shield.
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