Conductance of Pd-H nanojunctions

Abstract

Results of an experimental study of palladium nanojunctions in hydrogen environment are presented. Two new hydrogen-related atomic configurations are found, which have a conductances of ~0.5 and ~1 quantum unit (2e^2/h). Phonon spectrum measurements demonstrate that these configurations are situated between electrodes containing dissolved hydrogen. The crucial differences compared to the previously studied Pt-H_2 junctions, and the possible microscopic realizations of the new configurations in palladium-hydrogen atomic-sized contacts are discussed.

4 pages, 4 figures

References in corpus (6)

• Quantum properties of atomic-sized conductors
• Measurement of the conductance of a hydrogen molecule
• Driving current through single organic molecules
• Microscopic origin of the conducting channels in metallic atomic-size contacts
• Electronic transport and vibrational modes in the smallest molecular bridge: H2 in Pt nanocontacts
• Connective neck evolution and conductance steps in hot point contacts

Cited by in corpus (18)

• Stretching dependence of the vibration modes of a single-molecule Pt-H2-Pt bridge
• Transport in Molecular Junctions with Different Metallic Contacts
• Single channel conductance of H${}_2$ molecules attached to platinum or palladium electrodes
• Fabrication of stable Pd nanowire assisted by hydrogen in solution
• Effect of bonding of a CO molecule on the conductance of atomic metal wires
• Hydrogen-assisted stabilization of Ni nanowires in solution
• Effect of electron correlations in Pd, Ni, and Co monowires
• Conduction eigenchannels of atomic-sized contacts: Ab initio KKR Green's function formalism
• Existence of two-channel Kondo regime for tunneling impurities with resonant scattering
• Tuning the conductance of molecular junctions: transparent versus tunneling regimes
• Electronic transport properties of indolyl spirooxazine/merooxazine-based light-driven molecular switch: The effect of amino/nitro substituents
• First-principles calculation of H vibrational excitations at a dislocation core of Pd
• Interaction of CO with an Au monatomic chain at different strains: electronic structure and ballistic transport
• Electron transport across a quantum wire in the presence of electron leakage to a substrate
• Electric Conductance of Rh Atomic Contacts under Electrochemical Potential Control
• Strong paramagnon scattering in single atom Pd contacts
• Local Classical and Quantum Criticality due to Electron-Vibration Interaction
• Mechanisms of jump to contact and conductance plateau formation in copper atomic junctions in vacuum and aqueous environments