Effect of the hopping parameter on the current through a two-atom molecular wire


Proceedings of the 22nd Samahang Pisika ng Pilipinas Physics Congress, Bohol Tropics Resort, Tagbilaran City, 25–27 Oct 2004, 27.


We utilize the Hubbard model approach in analyzing the effect of the hopping parameter in the transport properties of a two-atom molecular device. A root finding method was utilized to implement self-consistent calculations to obtain the transport properties and our results agree with that in the literature. Variation of the hopping parameter shows that its value is proportional to the threshold voltage in the presence of an on-site Coulomb interaction U.