The shot noise properties in boron devices are investigated with a tight-binding model and the non-equilibrium Green’s function.It is found that the shot noise and Fano factors can be tuned by changing the structures,the size,and the coupling strength.The shot noise is suppressed momentarily as we switch on the bias voltage,and the electron correlation is significant.The Fano factors are more sensitive to the ribbon width than to the ribbon length in the full coupling context.In the weak-coupling context,th...
【英文摘要】
The shot noise properties in boron devices are investigated with a tight-binding model and the non-equilibrium Green's function. It is found that the shot noise and Fano factors can be tuned by changing the structures, the size, and the coupling strength. The shot noise is suppressed momentarily as we switch on the bias voltage, and the electron correlation is significant. The Fano factors are more sensitive to the ribbon width than to the ribbon length in the full coupling context. In the weak-coupling con...
【基金】
Project supported by the National Basic Research Program of China(Grants Nos.2011CB921602 and 2011CB606405);
the National Natural Science Foundation of China(Grant Nos.91221205 and 11174168)
【更新日期】
2014-03-27
【分类号】
TN06
【正文快照】
1.IntroductionNanoscale electronic devices have been attracting muchattention,[1–8]the nanoscale systems may help minimize com-puter circuit dimensions and enhance the computer perfor-mance.To design electronic devices with specific properties,abasic und
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