Stability of conductance oscillations in carbon atomic chains*
Yu Jing-Xin†, Hou Zhi-Wei, Liu Xiu-Ying
       
The second derivative of the conductance d2 G (0)/d2 V as a function of the number of atoms. Variations of differential conductance G ( V ) = d I /d V with applied bias V for odd carbon atomic chains (a) and even carbon atomic chains (b), respectively.