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Electronic Transport Properties of a Multiterminal Graphene Nanodevice

机译:多末端石墨烯纳米器件的电子传输特性

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摘要

The electronic transport properties of a multiterminal graphene nanodevice are investigated by means of the Landauer approach using tight-binding model. We find out that the transmission coefficient of the electrons decreases in the presence of random disorder. The presence of the random disorder causes the wave function to be localized. In this manner, we emphasize that when the disorder density is sufficiently large, the current reduces due to multi-scattering phenomenon. Our investigations show that the conductance is expected to be decreased exponentially with disorder strength and central region length. The results can be considered as bases in development of designing of the graphene nanodevices.
机译:使用紧密结合模型,通过Landauer方法研究了多末端石墨烯纳米器件的电子传输性能。我们发现,电子的传输系数在存在随机无序的情况下降低。随机障碍的存在导致波函数被定位。以这种方式,我们强调,当无序密度足够大时,由于多散射现象,电流减小。我们的研究表明,电导率预计会随着无序强度和中心区域长度的增加而呈指数下降。该结果可被认为是石墨烯纳米器件设计开发的基础。

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