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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

A self-consistent method for calculating electron transport through a molecular device is proposed. It is based on density functional theory electronic structure calculations under periodic boundary conditions and implemented in the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 San-Huang Ke , Harold U. Baranger , Weitao Yang

The proposed protocol is an attempt to meet the experimentalists' legitimate desire of reliably and easily extracting microscopic parameters from current-voltage measurements on molecular junctions. It applies to junctions wherein charge…

Mesoscale and Nanoscale Physics · Physics 2024-02-27 Ioan Baldea

The multilayer multiconfiguration time-dependent Hartree theory within second quantization representation of the Fock space is applied to study correlated electron transport in models of single-molecule junctions. Extending previous work,…

Mesoscale and Nanoscale Physics · Physics 2015-06-12 Haobin Wang , Michael Thoss

Electron transmission through molecules and molecular interfaces has been a subject of intensive research due to recent interest in electron transfer phenomena underlying the operation of the scanning tunneling microscope (STM) on one hand,…

Condensed Matter · Physics 2015-06-24 Abraham Nitzan

With much advancement in the field of nanotechnology, bioengineering and synthetic biology over the past decade, microscales and nanoscales devices are becoming a reality. Yet the problem of engineering a reliable communication system…

Emerging Technologies · Computer Science 2016-11-15 Nariman Farsad , H. Birkan Yilmaz , Andrew Eckford , Chan-Byoung Chae , Weisi Guo

Achieving highly transmitting molecular junctions through resonant transport at low bias is key to the next-generation low-power molecular devices. Although, resonant transport in molecular junctions was observed by connecting a molecule…

Mesoscale and Nanoscale Physics · Physics 2023-08-09 Biswajit Pabi , Štepán Marek , Adwitiya Pal , Puja Kumari , Soumya Jyoti Ray , Arunabha Thakur , Richard Korytár , Atindra Nath Pal

Colloidal nanoparticles developed as interesting objects to establish two- or three-dimensional super-structures with properties not known from conventional bulk materials. Beyond, the properties can be tuned and quantum effects can be…

Materials Science · Physics 2017-10-30 Christian Klinke

We have fabricated a variety of novel molecular tunnel junctions based on self-assembled-monolayers (SAM) of two-component solid-state mixtures of molecular wires (1,4 methane benzene-dithiol; Me-BDT with two thiol anchoring groups), and…

Materials Science · Physics 2009-11-11 Vladimir Burtman , Alexander S. Ndobe , Valy Z. Vardeny

We derive a master equation for the electron transport through molecular wires in the limit of strong Coulomb repulsion. This approach is applied to two typical situations: First, we study transport through an open conduction channel for…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Franz J. Kaiser , Michael Strass , Sigmund Kohler , Peter Hänggi

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

Vibrationally inelastic electron transport through a flexible molecular junction is investigated. The study is based on a mechanistic model for a biphenyl molecule between two metal electrodes. Employing methods from electron-molecule…

Mesoscale and Nanoscale Physics · Physics 2023-07-26 Martin Cizek , Michael Thoss , Wolfgang Domcke

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 treatment of the previous paper is extended to molecular wires. Specifically, the effect of electron-vibrational interactions on the electronic transport induced by femtosecond $\omega+2\omega$ laser fields along unbiased molecular…

Quantum Physics · Physics 2009-11-13 Ignacio Franco , Moshe Shapiro , Paul Brumer

In the present work we theoretically analyze thermoelectric transport in single-molecule junctions (SMJ) characterized by strong interactions between electrons on the molecular linkers and phonons in their nuclear environments where…

Mesoscale and Nanoscale Physics · Physics 2024-01-17 Natalya A. Zimbovskaya

Self-assembled-monolayer (SAM) molecular junctions (MJs) constitute a promising building block candidate for future molecular electronic devices. Transport properties of SAM-MJs are usually calculate using either the phenomenological…

Mesoscale and Nanoscale Physics · Physics 2015-06-30 Yonatan Dubi

The realization of molecular-based electronic devices depends to a large extent on the ability to mechanically stabilize the involved molecular bonds, while making use of efficient resonant charge transport through the device. Resonant…

Mesoscale and Nanoscale Physics · Physics 2018-09-11 David Gelbwaser-Klimovsky , Alán Aspuru-Guzik , Michael Thoss , Uri Peskin

Coherent spin-dependent electronic transport is investigated in a molecular junction made of polymeric chain attached to ferromagnetic electrodes (Ni and Co, respectively). Molecular system is described by a simple Huckel model, while the…

Soft Condensed Matter · Physics 2007-05-23 Kamil Walczak

We present a theoretical analysis aimed at understanding electrical conduction in molecular tunnel junctions. We focus on discussing the validity of coherent versus incoherent theoretical formulations for single-level tunneling to explain…

Mesoscale and Nanoscale Physics · Physics 2016-06-06 Alvar R. Garrigues , Li Yuan , Lejia Wang , Eduardo R. Mucciolo , Damien Thompson , Enrique del Barco , Christian A. Nijhuis

Due to high power consumption and difficulties with minimizing the CMOS transistor size, molecular electronics has been introduced as an emerging technology. Further, there have been noticeable advances in fabrication of molecular wires and…

Emerging Technologies · Computer Science 2012-01-11 Mehdi Ghasemi , Mohammad Hossein Moaiyeri , Keivan Navi