Inelastic electron tunneling spectroscopy of difurylethene-based photochromic single-molecule junctions

Inelastic electron tunneling spectroscopy of difurylethene-based photochromic single-molecule junctions

Diarylethene-derived molecules alter their electronic structure upon transformation between the open and closed forms of the diarylethene core, when exposed to ultraviolet (UV) or visible light. This transformation results in a significant variation of electrical conductance and vibrational properties of corresponding molecular junctions. We report here a combined experimental and theoretical a...

Characterization of single-molecule pentanedithiol junctions by inelastic electron tunneling spectroscopy and first-principles calculations

Carlos R. Arroyo,1 Thomas Frederiksen,2 Gabino Rubio-Bollinger,1 Marisela Vélez,1,3 Andrés Arnau,2,4,5 Daniel Sánchez-Portal,4,5 and Nicolás Agraït1,3 1Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, 28049 Madrid, Spain 2Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, Donostia-San Sebastián, Spain 3Instituto Madrileño de Estudios Avan...

Propensity rules for inelastic electron tunneling spectroscopy of single-molecule transport junctions.

Using a perturbative approach to simple model systems, we derive useful propensity rules for inelastic electron tunneling spectroscopy (IETS) of molecular wire junctions. We examine the circumstances under which this spectroscopy (that has no rigorous selection rules) obeys well defined propensity rules based on the molecular symmetry and on the topology of the molecule in the junction. Focusin...

Inelastic Electron Tunneling Spectroscopy

Inelastic electron tunneling spectroscopy in molecular junctions: peaks and dips.

We study inelastic electron tunneling through a molecular junction using the nonequilibrium Green's function formalism. The effect of the mutual influence between the phonon and the electron subsystems on the electron tunneling process is considered within a general self-consistent scheme. Results of this calculation are compared to those obtained from the simpler Born approximation and the sim...