Searching the Hearts of Graphene-like Molecules for Simplicity, Sensitivity, and Logic.

摘要: If quantum interference patterns in the hearts of polycyclic aromatic hydrocarbons could be isolated and manipulated, then a significant step toward realizing potential single-molecule electronics would achieved. Here we demonstrate experimentally theoretically that simple, parameter-free, analytic theory evaluated at mid-point HOMO–LUMO gap (referred to as M-functions) correctly predicts conductance ratios molecules with pyrene, naphthalene, anthracene, anthanthrene, or azulene hearts. M-functions provide new design strategies for identifying phase-coherent logic functions enhancing sensitivity molecular-scale interferometers.