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The non-equilibrium Greens function (NEGF) formalism provides a powerful conceptual and computational framework for treating quantum transport in nanodevices. It goes beyond the Landauer approach for ballistic, non-interacting electronics to include inelastic scattering and strong correlation effects at an atomistic level.
Check out Supriyo Datta's NEGF page for more information, or browse through the various resources listed below.
MCW07 Physics of Contact Induced Current Asymmetry in Transport Through Molecules
0.0 out of 5 stars
25 Feb 2008 | Online Presentations | Contributor(s): Bhaskaran Muralidharan, Owen D. Miller, Neeti Kapur, Avik Ghosh, Supriyo Datta
We first outline the qualitatively different physics involved in the charging-induced current asymmetries in molecular conductors operating in the strongly coupled (weakly interacting)...
Exploring Physical and Chemical control of molecular conductance: A computational study
01 Feb 2008 | Online Presentations | Contributor(s): Barry D. Dunietz
Application of the Keldysh Formalism to Quantum Device Modeling and Analysis
14 Jan 2008 | Papers | Contributor(s): Roger Lake
The effect of inelastic scattering on quantum electron transport through layered semi-conductor structures is studied numerically using the approach based on the non-equilibrium Green's function...
Electron-Phonon and Electron-Electron Interactions in Quantum Transport
14 Jan 2008 | Papers | Contributor(s): Gerhard Klimeck
The objective of this work is to shed light on electron transport through sub-micron semi-conductor structures, where electronic state quantization, electron-electron interactions and...
Can numerical “experiments” INSPIRE physical experiments?
5.0 out of 5 stars
20 Dec 2007 | Online Presentations | Contributor(s): Supriyo Datta
This presentation was one of 13 presentations in the one-day forum,
"Excellence in Computer Simulation," which brought together a broad
set of experts to reflect on the future of...
Engineering at the nanometer scale: Is it a new material or a new device?
06 Nov 2007 | Online Presentations | Contributor(s): Gerhard Klimeck
This seminar will overview NEMO 3D simulation capabilities and its deployment on the nanoHUB as well as an overview of the nanoHUB impact on the community.
MCW07 Modeling Molecule-Assisted Transport in Nanotransistors
06 Nov 2007 | Online Presentations | Contributor(s): Kamil Walczak
Molecular electronics faces many problems in practical device implementation, due to difficulties with fabrication and gate-ability. In these devices, molecules act as the main conducting channel....
MCW07 Simple Models for Molecular Transport Junctions
13 Sep 2007 | Online Presentations | Contributor(s): Misha Galperin, Abraham Nitzan, Mark A. Ratner
We review our recent research on role of interactions in molecular transport junctions. We consider simple models within nonequilibrium Green function approach (NEGF) in steady-state regime.
MCW07 Modeling Charging-based Switching in Molecular Transport Junctions
05 Sep 2007 | Online Presentations | Contributor(s): Sina Yeganeh, Misha Galperin, Mark A. Ratner
We will discuss several proposed explanations for the switching and negative differential resistance behavior seen in some molecular junctions. It is shown that a proposed polaron model is...
Introduction to FETToy
03 Jul 2007 | Series | Contributor(s): James K Fodor, Jing Guo
This learning module introduces nanoHUB users to the FETToy simulator. A brief introduction to FETToy is presented, followed by voiced presentations featuring the simulator in action. Upon...
Introduction to nanoMOS
02 Jul 2007 | Series | Contributor(s): James K Fodor, Jing Guo
This learning module introduces nanoHUB users to the nanoMOS simulator. A brief introduction to nanoMOS is presented, followed by voiced presentations featuring the simulator in action. Upon...
Multi-gate Nanowire FET
18 May 2007 | Tools | Contributor(s): Mincheol Shin
3D simulator for silicon nanowire field effect transistors with multiple gates
Atomistic Green\'s Function Method 1-D Atomic Chain Simulation
02 May 2007 | Tools | Contributor(s): Zhen Huang, Wei Zhang, Timothy S Fisher, Sridhar Sadasivam
Calculation of Thermal Conductance of an Atomic Chain
BNC Annual Research Symposium: Nanoscale Energy Conversion
23 Apr 2007 | Online Presentations | Contributor(s): Timothy S Fisher
This presentation is part of a collection of presentations describing the projects, people, and capabilities enhanced by research performed in the Birck Center, and a look at plans for the...
3.0 out of 5 stars
09 Feb 2007 | Tools | Contributor(s): Neophytos Neophytou, Shaikh S. Ahmed, Eric Polizzi, Gerhard Klimeck, Mark Lundstrom
Simulates ballistic transport properties in 3D Carbon NanoTube Field Effect Transistor (CNTFET) devices
Highly Efficient Thermal Transport: The Application of Carbon Nanotube Array Interfaces
4.0 out of 5 stars
01 Feb 2007 | Online Presentations | Contributor(s): Baratunde A. Cola
Carbon nanotubes (CNTs) have received much attention in recent years for their extraordinary properties that through careful engineering may be leverage for the development of numerous...
McCoy Lecture: Nanodevices and Maxwell's Demon
08 Dec 2006 | Online Presentations | Contributor(s): Supriyo Datta
This is a video taped live lecture covering roughly the same material as lecture 1 of "Concepts of Quantum Transport". Video only.
CQT Lecture 4: Coulomb blockade and Fock space
To illustrate the limitations of the model
described in Lectures 2, 3 and introduce a completely different approach based on
the concept of Fock space.
I believe this will be a...
CQT Lecture 3: Probabilities, Wavefunctions and Green Functions
Objective: To extend the simple model from Lecture 2
into the full-blown model combines the NEGF (Non-Equilibrium
Green Function) method with the Landauer approach.
CQT Lecture 2: Electrical Resistance - A Simple Model
To introduce a simple quantitative
model for describing current flow in nanoscalestructures and relate it to
well-known large scale properties like Ohm’s Law.