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We report on the photoluminescence dynamics of highly n-doped tensile-strained germanium on silicon. The instantaneous decay photoluminescence lifetime changes with intensity, which is explained by the interplay of Shockley-Read Hall and Auger processes.
We have developed a new magnetic random access memory with current-induced domain wall (DW) motion (DW-motion MRAM). We confirmed its potential of 0.1-mA and 2-ns writing with sufficient thermal stability. The obtained properties indicate that this MRAM can replace conventional high-speed embedded memories.
In data transmission equipment for a broadband system, high-speed serial signal transmission has become essential technology. In order to transmit high-speed serial signals with low bit-error-rate, high accuracy in impedance matching of the transmission path is needed. In this paper, first we clarify the relation between the impedance deviations of each part in a signal transmission path and the return...
A car running on a low friction road skids off easily and falls into a spin. In such situation, it is technically difficult for a normal driver to recover the car into a stable state. If a car obeys nonholonomic constraints, we can steer it easily. To keep these constraints, we have proposed a driving force controller based on the sliding mode control theory that reduces the deviations from constraints...
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