title: Single C59N molecule as a molecular rectifier.
abstract: We report a new kind of experimental realization of a molecular rectifier, which is based on a single azafullerene C59N molecule in a double-barrier tunnel junction via the single electron tunneling effect. An obvious rectifying effect is observed. The positive onset voltage is about 0.5-0.7 V, while the negative onset voltage is about 1.6-1.8 V. Theoretical analyses show that the half-occupied molecular orbital of the C59N molecule and the asymmetric shift of the molecular Fermi level when the molecule is charged are responsible for the molecular rectification.
authors.affiliation: Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui.
authors.forename: Jin
authors.initials: J
authors.lastname: Zhao
authors.forename: Changgan
authors.initials: C
authors.lastname: Zeng
authors.forename: Xin
authors.initials: X
authors.lastname: Cheng
authors.forename: Kedong
authors.initials: K
authors.lastname: Wang
authors.forename: Guanwu
authors.initials: G
authors.lastname: Wang
authors.forename: Jinlong
authors.initials: J
authors.lastname: Yang
authors.forename: J G
authors.initials: JG
authors.lastname: Hou
authors.forename: Qingshi
authors.initials: Q
authors.lastname: Zhu