一种微机械可调谐光滤波器

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降低磷离子注入（0001）取向的4H-碳化硅电阻率的方法

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背孔结构氮化镓基发光二极管的制作方法

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一次外延形成半导体激光器和模斑转换器的方法

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双波导技术制作半导体激光器和模斑转换器的方法

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半绝缘衬底长波长半导体激光器及其制作方法

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非共面电极半导体激光器芯片高频特性测试台

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测量非共面电极激光器芯片的高频测试夹具

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一种硅的光探测器件

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粉尘清除器

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正交频分复用系统帧同步结构

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正交频分复用系统定时同步方法

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快速升温和快速降温的贴片加热装置

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半导体激光器高频封装用具有微带结构的热沉

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Fe-57 Mossbauer spectroscopic and magnetic studies of R3Fe29-xVx (R = Y, Ce, Nd, Sm, Gd, Tb, and Dy)

Mossbauer spectra for Fe atoms in the series of R3Fe29-xVx (R = Y, Ce, Nd, Sm, Gd, Tb, and Dy) compounds were collected at 4.2 K. The ratio of 14.5 T/mu(B) between the average hyperfine field B-hf and the average Fe magnetic moment mu(Fe)(MS), obtained from our data, in Y3Fe29-xVx is in agreement with that deduced from the RxTy alloys by Gubbens et al. The average Fe magnetic moments mu(Fe)(MS) in these compounds at 4.2 K, deduced from our Mossbauer spectroscopic studies, are in accord with the results of magnetization measurement. The average hyperfine field of the Fe sites for R3Fe29-xVx at 4.2 K increases with increasing values of the rare earth effective spin (g(J) - 1) J, which indicates that there exists a transferred spin polarization induced by the neighboring rare earth atom.