Scanning electron microscope image of a silver NW film, showing the disordered complex network. Courtesy of J. N. Coleman, Trinity College, Dublin.
Schematic representation of the system. The scattering region C contains the disordered array of finite NWs. Each perfect lead L and R contain several independent semi-infinite wires. On the upper panel the vertical line indicates the location of the cleavage plane through which the conductance is calculated.
Conductance at a fixed energy as a function of the connectivity of the network. Electronic transmission increases as more conducting paths become available. Legends indicate total number of wires. The length of the wires is fixed at , and there are connections to each electrode. Data averaged over 1000 independent configurations.
Network conductance as a function of the number of connections to electrodes, . Inset: slope of the linear-fitted lines increases with the network connectivity , toward a saturation point. Data are for and , averaged over at least 200 independent configurations.
Network conductance as a function of interwire/intrawire coupling ratio. Maximum conductance is obtained around . , , , , and 1000 independent configurations. Inset: Conductance of two semi-infinite chains connected by a hopping .
Article metrics loading...
Full text loading...