The transmission of the electron across the single normal metal-graphene (NG) and normal-metal-graphene-normal-metal (NGN) junctions has been investigated. For the single NG junction, the profile of the maximum transmission bears similarity to that of the conductance of the system and the minor effect of the incidence energy on transmission is found in conductance of the single NG junction. Concerning with NGN junction, the increase of strain strength always induces more resonance peaks at different angles in transmission and can therefore enhance the conductance. The increase of length of the middle graphene segment can accommodate more quasi-resonance states, leading to the more resonance peaks and richer structures in transmission. In both single NG and NGN junctions, the increase of the wavefunction period on metal side(s) can be observed due to the enhancement of strain strength, which can serve as the sensor for the detection of the strain strength in graphene.

已经研究了电子跨单个正态金属-石墨烯（NG）和正态金属-石墨烯-正态金属（NGN）结的传输。对于单个NG结，最大传输的分布与系统的电导相似，并且在单个NG结的电导中发现入射能量对传输的较小影响。关于NGN结，应变强度的增加总是会在传输的不同角度引起更多的共振峰，因此可以增强电导。中间石墨烯链段长度的增加可以容纳更多的准共振态，从而导致更多的共振峰和更丰富的透射结构。在单个NG和NGN交汇处，