  First principle calculations of the conductance of gold wires containing 3-8
atoms each with 2.39 {\AA} bond length were performed using density functional
theory. Three different configuration of wire/electrodes were used. For zigzag
wire with semi-infinite crystalline electrodes, even-odd oscillation is
observed which is consistent with the previously reported results. A lower
conductance was observed for the chain in semi-infinite crystalline electrodes
compared to the chains suspended in wire-like electrode. The calculated
transmission spectrum for the straight and zig-zag wires suspended between
semi-infinite crystalline electrodes showed suppression of transmission
channels due to electron scattering occurring at the electrode-wire interface.
