The filtering effect could be amplified by placing the ferromagnet in a resonant tunnel diode.
若将铁磁体放入共振穿隧二极体中，可以放大过滤效果。
These data and results are helpful to design and develop spin field effect transistor, spin light-emitting diode, spin resonant tunneling device, etc.
这些数据和结果有助于设计和研制自旋场效应晶体管、自旋发光二极管和自旋共振隧道器件等。
By analyzing the direct frequency modulation and optical feedback effect of laser diode, a theoretical model for measuring small vibration displacement and velocity is discussed.
分析了在直接频率调制下，激光二极管中的光反馈效应，探讨了振动微小位移和速度的理论模型。
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