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Recent experiments demonstrate a temperature control of the electric conduction through a ferrocene-based molecular junction. Here we examine the results in view of determining means to distinguish between transport through single-particle…

Mesoscale and Nanoscale Physics · Physics 2018-02-23 Miguel A. Sierra , David Sánchez , Alvar R. Garrigues , Enrique del Barco , Lejia Wang , Christian A. Nijhuis

Molecular electronics offers unique scientific and technological possibilities, resulting from both the nanometre scale of the devices and their reproducible chemical complexity. Two fundamental yet different effects, with no classical…

Mesoscale and Nanoscale Physics · Physics 2017-05-12 Andrew K. Mitchell , Kim G. L. Pedersen , Per Hedegaard , Jens Paaske

Understanding the formation of metal-molecule contact at the microscopic level is the key towards controlling and manipulating atomic scale devices. Employing two isomers of bipyridine, $4, 4^\prime$ bipyridine and $2, 2^\prime$ bipyridine…

Mesoscale and Nanoscale Physics · Physics 2021-10-04 Biswajit Pabi , Debayan Mondal , Priya Mahadevan , Atindra Nath Pal

Molecular bridges covalently bonded to two ferromagnetic electrodes can transform ferromagnetic materials and produce intriguing spin transport characteristics. This paper discusses the impact of molecule induced strong coupling on spin…

Materials Science · Physics 2019-12-04 Pawan Tyagi , Edward Friebe

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

Thermoelectric materials, which can convert waste heat into electricity or act as solid-state Peltier coolers, are emerging as key technologies to address global energy shortages and environmental sustainability. However, discovering…

Applied Physics · Physics 2024-03-12 Kaidong Song , A. N. M. Tanvir , Md Omarsany Bappy , Yanliang Zhang

Improved understanding of molecular systems has only emphasised the sophistication of networks within the cell. Simultaneously, the advance of nucleic acid nanotechnology, a platform within which reactions can be exquisitely controlled, has…

Molecular Networks · Quantitative Biology 2017-10-03 Thomas E. Ouldridge

The energy dissipation and heat flows associated with the particle current in a system with a molecular junction are considered. In this connection, we determine the effective temperature of the molecular oscillator that is compatible with…

Mesoscale and Nanoscale Physics · Physics 2018-03-20 Jan Loos , Thomas Koch , Holger Fehske

The interaction of carbon monoxide molecules with atomic-scale platinum nanojunctions is investigated by low temperature mechanically controllable break junction experiments. Combining plateaus' length analysis, two dimensional…

Mesoscale and Nanoscale Physics · Physics 2016-01-27 Péter Makk , Zoltán Balogh , Szabolcs Csonka , András Halbritter

Thermoelectric materials intrigue much interest due to their wide range of application such as power generators and refrigerators. The efficiency of thermoelectric materials is quantified by the figure of merit, and a figure greater than…

Mesoscale and Nanoscale Physics · Physics 2022-02-16 Masashi Hosoi , Ikuma Tateishi , Hiroyasu Matsuura , Masao Ogata

Diffraction experiments have moved to ever heavier objects in recent years, now standing at the level of large molecules. Experiments in materials science on the other hand have come down to ever smaller sizes largely due to the success of…

Quantum Physics · Physics 2007-05-23 R. Stadler , W. A. Hofer

We report low-temperature transport measurements through molecules of Gd metallofullerenes between superconducting suspended electrodes. The presence and number of molecules in the 2 nm-wide gap between electrodes was determined by high…

We study the model of a molecular switch comprised of a molecule with a soft vibrational degree of freedom coupled to metallic leads. In the presence of strong electron-ion interaction, different charge states of the molecule correspond to…

Mesoscale and Nanoscale Physics · Physics 2008-12-18 Fabio Pistolesi , Yaroslav M. Blanter , Ivar Martin

Ferroelectrics are attractive candidate materials for environmentally friendly solid state refrigeration free of greenhouse gases. Their thermal response upon variations of external electric fields is largest in the vicinity of their phase…

Materials Science · Physics 2016-05-20 G. G. Guzmán-Verri , P. B. Littlewood

We assess the performances of the transition voltage spectroscopy (TVS) method to determine the energies of the molecular orbitals involved in the electronic transport though molecular junctions. A large number of various molecular…

Mesoscale and Nanoscale Physics · Physics 2013-02-11 Guillaume Ricœur , Stéphane Lenfant , David Guérin , Dominique Vuillaume

Molecular junctions and similar devices described by an energy dependent transmission coefficient can have a high linear response thermoelectric figure of merit. Since such devices are inherently non-linear, the full thermodynamic…

Mesoscale and Nanoscale Physics · Physics 2013-10-22 Selman Hershfield , K. A. Muttalib , Bradley J. Nartowt

We provide a theoretical estimate of the thermoelectric current and voltage over a Phenyldithiol molecule. We also show that the thermoelectric voltage is (1) easy to analyze, (2) insensitive to the detailed coupling to the contacts, (3)…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 M. Paulsson , S. Datta

Magnetic fusion devices operate at regimes characterized by extremely high temperatures and low densities, for which the charged particles motion is well described by classical mechanics. This is not true, however, for solid-state metallic…

Plasma Physics · Physics 2015-06-23 Giovanni Manfredi , Jérôme Hurst

The thermopower and conductance of atomic-size metallic contacts have been simultaneously measured using a mechanically controllable break junction. For contacts approaching atomic dimensions, abrupt steps in the thermopower are observed…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 B. Ludoph , J. M. van Ruitenbeek

Based on the non-equilibrium Green's function (NEGF) technique and the Landauer-B\"{u}ttiker theory, the possibility of a molecular spin-electronic device, which consists of a single C$_{60}$ molecule attached to two ferromagnetic…

Mesoscale and Nanoscale Physics · Physics 2008-12-31 Alireza Saffarzadeh