Electric field-induced switching among multiple conductance pathways in single-molecule junctions
Tengyang Gao, Zhichao Pan, Zhuan‐Yun Cai, Jueting Zheng, Chun Tang, Sàisài Yuán, Shi Qiang Zhao, Hua Bai, Yang Yang, Jia Shi, Zongyuan Xiao, Junyang Liu, Wenjing Hong
Abstract
Here, we report the switching among multiple conductance pathways achieved by sliding the scanning tunneling microscope tip among different binding sites under different electric fields. With an increase in the electric field, high molecular conductance states appear, suggesting the formation of different configurations in single-molecule junctions. The switch can be operated in situ and reversibly, which is also confirmed by the apparent conductance conversion in I-V measurements. Theoretical simulations also agree well with the experimental results, which implies that the electric field enables the possibility to trigger switching in single-molecule junctions.