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Related papers: Lithographic mechanical break junctions for single…

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We present the results of molecular dynamics (MD) studies of hexane physisorbed onto graphite for eight coverages in the range $0.875 \le \rho \le 1.05$ (in units of monolayers). At low temperatures the adsorbate molecules form a uniaxially…

Soft Condensed Matter · Physics 2015-06-25 Cary L. Pint , M. W. Roth , Carlos Wexler

We report on inelastic electron tunneling spectroscopy measurements carried out on single molecules incorporated into a mechanically controllable break-junction of Au and Pt electrodes at low temperature. Here we establish a correlation…

Mesoscale and Nanoscale Physics · Physics 2010-11-16 Youngsang Kim , Hyunwook Song , Florian Strigl , Hans-Fridtjof Pernau , Takhee Lee , Elke Scheer

Using benzene-diamine and benzene-dithiol molecular junctions as benchmarks, we investigate the widespread analysis of the quantum transport conductance $\mathcal{G}(\epsilon)$ in terms of the projected density of states (PDOS) onto…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 Tonatiuh Rangel , Gian-Marco Rignanese , Valerio Olevano

We present a simple and reliable method for making electrical contacts to small organic molecules with thiol endgroups. Nanometer-scale gaps between metallic electrodes have been fabricated by passing a large current through a…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Subhasis Ghosh , Henny Halimun , Jaewon Choi , Saurabh Lodha , David Janes

The superconducting proximity effect has played an important role in recent work searching for Majorana modes in thin semiconductor devices. Using transport measurements to quantify the changes in the semiconductor caused by the proximity…

Superconductivity · Physics 2014-02-26 Michael Vissers , Victor K. Chua , Stephanie A. Law , Smitha Vishveshwara , James N. Eckstein

We studied the noise spectra of molecule-free and molecule-containing mechanically controllable break junctions. Both types of junctions revealed typical 1/ f noise characteristics at different distances between the contacts with square…

Mesoscale and Nanoscale Physics · Physics 2015-06-05 V. A. Sydoruk , D. Xiang , S. A. Vitusevich , M. V. Petrychuk , A. Vladyka , Y. Zhang , A. Offenhäusser , V. A. Kochelap , A. E. Belyaev , D. Mayer

We report state-of-the-art atomistic simulations combined with high-fidelity conductance calculations to probe structure-conductance relationships in Au-benzenedithiolate(BDT)-Au junctions under elongation. Our results demonstrate that…

Mesoscale and Nanoscale Physics · Physics 2013-04-22 William R. French , Christopher R. Iacovella , Ivan Rungger , Amaury Melo Souza , Stefano Sanvito , Peter T. Cummings

We report a method using scanning tunnelling microscope single molecular break junction to simultaneously measure and correlate the single-molecule thermopower and electrical conductance. In contrast to previously reported approaches, it…

Mesoscale and Nanoscale Physics · Physics 2021-09-24 Joseph M. Hamill , Christopher Weaver , Tim Albrecht

Understanding phononic heat transport processes in molecular junctions is a central issue in the developing field of nanoscale heat conduction and manipulation. Here we present a Stochastic Nonequlibrium Molecular Dynamics simulation…

Materials Science · Physics 2021-02-04 Inon Sharony , Renai Chen , Abraham Nitzan

We present an original method to estimate the conductivity of a single molecule anchored to nanometric-sized metallic electrodes, using a Mechanically Controlled Break Junction (MCBJ) operated at room temperature in liquid. We record the…

Mesoscale and Nanoscale Physics · Physics 2018-03-16 M. Gil , T. Malinowski , M. Iazykov , H. Klein

With the objective to understand microscopic principles governing thermal energy flow in nanojunctions, we study phononic heat transport through metal-molecule-metal junctions using classical molecular dynamics (MD) simulations. Considering…

Mesoscale and Nanoscale Physics · Physics 2022-11-23 Jonathan J. Wang , Jie Gong , Alan J. H. McGaughey , Dvira Segal

A comprehensive review is presented of single molecule junction conductance measurements across families of molecules measured while breaking a gold point contact in a solution of molecules with amine end groups. A theoretical framework…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Mark S. Hybertsen , Latha Venkataraman , Jennifer E. Klare , Adam C. Whalley , Michael L. Steigerwald , Colin Nuckolls

We measure the low bias conductance of a series of substituted benzene diamine molecules while breaking a gold point contact in a solution of the molecules. Transport through these substituted benzenes is by means of nonresonant tunneling…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Latha Venkataraman , Young S. Park , Adam C. Whalley Colin Nuckolls , Mark S. Hybertsen , Michael L. Steigerwald

Based on the matrix Green's function method combined with hybrid tight-binding / density functional theory, we calculate the conductances of a series of gold-dithiol molecule-gold junctions including benzenedithiol (BDT),…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Zhanyu Ning , Jingzhe Chen , Shimin Hou , Jiaxing Zhang , Zhenyu Liang , Jin Zhang , Rushan Han

We report a combined experimental (C-AFM and SThM) and theoretical (DFT) study of the thermoelectric properties of molecular junctions made of self-assembled monolayers on Au of thiolated benzothieno-benzothiophene (BTBT) and alkylated BTBT…

Mesoscale and Nanoscale Physics · Physics 2024-11-13 Sergio Gonzalez-Casal , Rémy Jouclas , Imane Arbouch , Yves Geerts , Colin van Dyck , Jérôme Cornil , Dominique Vuillaume

The study of electron transport through single molecules is essential to the development of molecular electronics. Indeed, trends in electronic conductance through organic nanowires have emerged with the increasing reliability of electron…

Mesoscale and Nanoscale Physics · Physics 2007-05-24 Jordan R. Quinn , Frank W. Foss , Latha Venkataraman , Mark S. Hybertsen , Ronald Breslow

This mini review focuses on conductance measurements through molecular junctions containing few tens of molecules, which are fabricated along two approaches: (i) conducting atomic force microscope contacting a self-assembled monolayers on…

Applied Physics · Physics 2019-11-12 Dominique Vuillaume

The molecular dynamics of solid benzene are extremely complex; especially below 77 K, its inner mechanics remain mostly unexplored. Benzene is also a prototypical molecular crystal that becomes energetically frustrated at low temperatures…

Chemical Physics · Physics 2017-03-07 F. Yen , S. Z. Huang , S. X. Hu , L. Y. Zhang , L. Chen

We report the first concurrent determination of conductance (G) and thermopower (S) of single-molecule junctions via direct measurement of electrical and thermoelectric currents using a scanning tunneling microscope-based break-junction…

Mesoscale and Nanoscale Physics · Physics 2012-01-10 J. R. Widawsky , P. Darancet , J. B. Neaton , L. Venkataraman

Using a break junction technique, we find a clear signature for the formation of conducting hybrid junctions composed of a single organic molecule (benzene, naphthalene or anthracene) connected to chains of platinum atoms. The hybrid…

Mesoscale and Nanoscale Physics · Physics 2015-06-23 Tamar Yelin , Ran Vardimon , Natalia Kuritz , Richard Korytár , Alexei Bagrets , Ferdinand Evers , Leeor Kronik , Oren Tal