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Understanding the transport characteristics at the atomic limit is the prerequisite for futuristic nano-electronic applications. Among various experimental procedures, mechanically controllable break junction (MCBJ) is one of the well…

Mesoscale and Nanoscale Physics · Physics 2023-01-04 Biswajit Pabi , Atindra Nath Pal

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

Off-resonant charge transport through molecular junctions has been extensively studied since the advent of single-molecule electronics and it is now well understood within the framework of the non-interacting Landauer approach. Conversely,…

The transport through a quantum-scale device may be characterized by the transmission eigenvalues. These values constitute a junction PIN code where, for example, in single-atom metallic contacts the number of transmission channels is also…

Mesoscale and Nanoscale Physics · Physics 2011-08-01 Justin P. Bergfield , Joshua D. Barr , Charles A. Stafford

We investigate charge transport in C$_{60}$-based single-molecule junctions with graphene electrodes employing a combination of density functional theory (DFT) electronic structure calculations and Landauer transport theory. In particular,…

Mesoscale and Nanoscale Physics · Physics 2017-01-12 Susanne Leitherer , Pedro B. Coto , Konrad Ullmann , Heiko B. Weber , Michael Thoss

We present a method for incorporating image-charge effects into the description of charge transport through molecular devices. A simple model allows us to calculate the adjustment of the transport levels, due to the polarization of the…

Mesoscale and Nanoscale Physics · Physics 2015-11-23 C. J. O. Verzijl , J. A. Celis Gil , M. L. Perrin , D. Dulić , H. S. J. van der Zant , J. M. Thijssen

Understanding electrical characteristics and corresponding transport models at single molecular junctions is crucial. There have been many reports on organic compounds-based single molecular junctions. However, organometallic…

Materials Science · Physics 2024-09-04 Rajwinder Kaur , Savas Kaya , Konstantin P. Katin , Prakash Chandra Mondal

The conductance of single molecule junctions is calculated using a Landauer approach combined to many-body perturbation theory MBPT) to account for electron correlation. The mere correction of the density-functional theory eigenvalues,…

Mesoscale and Nanoscale Physics · Physics 2015-05-27 T. Rangel , A. Ferretti , P. E. Trevisanutto , V. Olevano , G. -M. Rignanese

The characteristics of molecular electronic devices are critically determined by metal-organic interfaces, which influence the arrangement of the orbital levels that participate in charge transport. Studies on self-assembled monolayers…

We describe the synthesis and single molecule electrical transport properties of a molecular wire containing a ${\pi}$-extended tetrathiafulvalene (exTTF) group and its charge-transfer complex with F4TCNQ. We form single molecule junctions…

Non-equilibrium Green's functions (NEGF) formalism combined with extended Huckel (EHT) and charging model are used to study electrical conduction through single-molecule junctions. Analyzed molecular complex is composed of asymmetric…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Kamil Walczak , Sergey Edward Lyshevski

The single-molecule conductance of a 3-ring, conjugated azomethine was studied using the mechanically controlled breakjunction technique. Charge transport properties are found to be comparable to vinyl-based analogues; findings are…

Mesoscale and Nanoscale Physics · Physics 2016-08-18 Max Koole , Riccardo Frisenda , Michiel L. Petrus , Mickael L. Perrin , Herre S. J. van der Zant , Theo J. Dingemans

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

We report low-temperature measurements of the electrical transport properties of few-atom contacts of the superconducting metal zinc, arranged with lithographically fabricated mechanically controllable breakjunctions (MCB). The conductance…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 A. Mayer-Gindner , H. v. Löhneysen , E. Scheer

Quantum transport through single molecules is very sensitive to the strength of the molecule-electrode contact. Here, we investigate the behavior of a model molecular junction weakly coupled to external electrodes in the case where charging…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Bo Song , Dmitry A. Ryndyk , Gianaurelio Cuniberti

Using first-principles calculations based on density functional theory combined with the non-equilibrium Green's function approach, the transport behaviors of a single-molecule junction formed by benzenedithiol connected to gold electrodes…

Materials Science · Physics 2022-09-20 Rigao Wang , Feng Shuang , Xiaowen Shi , Mingyan Chen

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 ac electrical transport properties of polycrystalline Pr$_2$MgZrO$_6$ (PMZ) have been investigated using conductivity and impedance spectroscopic techniques. The crystal structure of PMZ has been determined to be monoclinic through a…

Materials Science · Physics 2023-07-26 Moumin Rudra , T. P. Sinha

We present a method to measure electric-charge transport in high-energy nuclear collisions using a beam-energy scan of isobaric systems. Comparing collisions of nuclei with identical mass number but different atomic number allows the charge…

Nuclear Experiment · Physics 2026-04-06 Wendi Lv , Niseem Magdy , Rongrong Ma , Zebo Tang , Prithwish Tribedy , Chun Yuen Tsang , Zhangbu Xu

Molecules of bisthiolterthiophene have been adsorbed on the two facing gold electrodes of a mechanically controllable break junction in order to form metal-molecule(s)-metal junctions. Current-voltage (I-V) characteristics have been…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 C. Kergueris , J. -P. Bourgoin , S. Palacin , D. Esteve , C. Urbina , M. Magoga , C. Joachim
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