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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 Modeling Charging-based Switching in Molecular Transport Junctions
5.0 out of 5 stars
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
0.0 out of 5 stars
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...
NEGF Formulism Question
Open | Responses: 1
I’m not too familiar with the NEGF formalism. But had a very basic question.
I’ve read that NEGF can be viewed as a “Quantum Boltzmann Equation”. When...
In the time-dependent NEGF equation, given a sigma_in(t,t’) due to the dot, I am getting
an I-V equation that is making it difficult for me to group terms. For instance, looking at...
What I want to do is building an aluminum quantum dot coupled to
aluminum leads to observe Coulomb Blockade. To form the tunnel barriers
we oxidize the Al in a plasma without any detailed...
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.
CQT Lecture 1: Nanodevices and Maxwell's Demon
Objective: To illustrate the subtle interplay of
dynamics and thermodynamicsthat distinguishes transport physics.
A short overview of this series of four lectures is given.
CQT: Concepts of Quantum Transport
08 Dec 2006 | Courses | Contributor(s): Supriyo Datta
Note: For an expanded version of these lectures see Datta's 2008 NCN@Purdue Summer School presentations on
Nanoelectronics and the Meaning of Resistance.
How does the resistance of a...
MOSCNT: code for carbon nanotube transistor simulation
3.5 out of 5 stars
15 Nov 2006 | Downloads | Contributor(s): Siyu Koswatta, Jing Guo, Dmitri Nikonov
Ballistic transport in carbon nanotube metal-oxide-semiconductor field-effect transistors (CNT-MOSFETs) is simulated using the Non-equilibrium Green’s function formalism. A cylindrical transistor...