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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.
ECE 495N Lecture 34: NEGF Continued I
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10 Dec 2008 | Online Presentations | Contributor(s): Supriyo Datta
ECE 495N Lecture 35: NEGF Continued II
ECE 495N Lecture 33: Non-Equilibrium Green's Function (NEGF) Method
04 Dec 2008 | Online Presentations | Contributor(s): Supriyo Datta
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24 Jul 2008 | Tools | Contributor(s): Gianluca Fiori, Giuseppe Iannaccone
3D Poisson/NEGF solver for the simulation of Graphene Nanoribbon, Carbon nanotubes and Silicon Nanowire Transistors.
Quantum and Thermal Effects in Nanoscale Devices
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18 Sep 2008 | Online Presentations | Contributor(s): Dragica Vasileska
To investigate lattice heating within a Monte Carlo device simulation framework, we simultaneously solve the Boltzmann transport equation for the electrons, the 2D Poisson equation to get the...
Nanoelectronics and the meaning of resistance: Course Handout and Exercises
02 Sep 2008 | Teaching Materials | Contributor(s): Supriyo Datta
Handout with reference list, MATLAB scripts and exercise problems.
Lecture 4A: Energy Exchange and Maxwell's Demon
02 Sep 2008 | Online Presentations | Contributor(s): Supriyo Datta
Objective: To incorporate distributed energy exchange processes into the previous models from lectures 1 through 3 which are based on a "Landauer-like picture" where the Joule heating associated...
Introduction: Nanoelectronics and the meaning of resistance
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20 Aug 2008 | Online Presentations | Contributor(s): Supriyo Datta
This lecture provides a brief overview of the five-day short course whose purpose is to introduce a unified viewpoint for a wide variety of nanoscale electronic devices of great interest for all...
Lecture 2A: Quantum Transport
Objective: To extend the simple model from Lectures 1 into the full-fledged Non-equilibrium Green’s Function (NEGF) – Landauer model by introducing a spatial grid of N points and turning...
Lecture 2B: Quantum Transport
Lecture 3A: Spin Transport
Objective: To extend the model from Lectures 1 and 2 to include electron spin. Every electron is an elementary “magnet” with two states having opposite magnetic moments. Usually this has no...
Lecture 3B: Spin Transport
Lecture 4B: Energy Exchange and Maxwell’s Demon
Objective: To incorporate distributed energy exchange processes into the previous models from lectures 1 through 3 which are based on a “Landauer-like picture” where the Joule heating...
Lecture 5A: Correlations and Entanglement
Objective: To relate the one-electron picture used throughout these lectures to the more general but less tractable many-particle picture that underlies it. We introduce this new viewpoint using...
Lecture 5B: Correlations and Entanglement
Nanoelectronics and the Meaning of Resistance
20 Aug 2008 | Courses | Contributor(s): Supriyo Datta
The purpose of this series of lectures is to introduce the "bottom-up" approach to nanoelectronics using concrete examples. No prior knowledge of quantum mechanics or statistical mechanics is...
30 Jan 2008 | Tools | Contributor(s): Kirk H. Bevan
Non-equilibrium Green's Function Density Functional Theory Simulator
Nanoelectronic Modeling: Multimillion Atom Simulations, Transport, and HPC Scaling to 23,000 Processors
07 Mar 2008 | Online Presentations | Contributor(s): Gerhard Klimeck
Future field effect transistors will be on the same length scales as “esoteric” devices such as quantum dots,
nanowires, ultra-scaled quantum wells, and resonant tunneling diodes. In those...
MCW07 Physics of Contact Induced Current Asymmetry in Transport Through Molecules
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
31 Jan 2008 | Online Presentations | Contributor(s): Barry D. Dunietz