Conformation-dependent conductance in single molecular break junctions
Hamill, Joseph Martin
MetadataShow full item record
Force and conductance, measured across 4,4'-bipyridine simultaneously, are crosscorrelated using a two dimensional (2D) histogram method. The result is a 2D multivariate statistical analysis superior to current one dimensional histogram techniques for exploring significant conductance and force modulations within SMBJs. This method is sensitive enough to crosscorrelate signal modulations between force and conductance traces associated with contact geometry perturbations predicted in literature such as Au-molecule contact twisting and slipping during junction elongation. Additionally, this technique is simple enough to use out-of-the-box, illustrated by its application in DNA conductance measurements to describe junction conformation, facilitating better understanding of the system.