作者: Dace Zha , Changpeng Chen , Jinping Wu
DOI: 10.1016/J.SSC.2015.06.018
关键词:
摘要: Abstract Using density functional theory and non-equilibrium Green׳s function technique, we performed theoretical investigations on the transport properties of several ZAZ SiNRs junctions (a similar kind silicene molecules junction combined by zigzag armchair nanoribbons). It is found that differential conductances three systems decrease with an order 5-ZAZ>4-ZAZ>3-ZAZ. Particularly, Negative resistance (NDR) can be observed within certain bias voltage range only in 3-ZAZ SiNRs. In to elucidate mechanism NDR behavior, transmission spectra molecular projected self-consistent Hamiltonian (MPSH) states are discussed details.