The current of the meta-linked benzene is three orders of magnitude lower than the orthoand para-connected cases due to destructive quantum interference near the Fermi energy (transmission plot in Figure ). A largely unidirectional ring current appears around the cyclic structure, albeit it is turbulent which is closely connected to the quantum interfer-ence effect. The ring current causes strong local enhancement of the magnetic field inside the benzene ring, which is almost as strong as that of ortho-linked benzene despite the much lower current. While the ideal ring current is achieved, the quantum interference effect also makes meta-linked benzene electrically insulating, and the current-induced magnetic field is insubstantial.