Low-bias negative differential conductance controlled by electrode separation

Yi Xiao-Hua, Liu Ran, Bi Jun-Jie, Jiao Yang, Wang Chuan-Kui, Li Zong-Liang^†,

Elongating and Compressing process of TADHA molecular junctions. (a) Ground state energies of TADHA molecular junctions with different values of electrode separation (D). The insets correspond to the configurations of three different distances, where B corresponds to the distance with the minimum energy, (b) Electrode force and dihedral angle of 9, 10-dihydroanthracene core versus electrode distance.