Tags: NEGF

Description

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.

All Categories (121-140 of 192)

  1. 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....

    http://nanohub.org/resources/3074

  2. 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.

    http://nanohub.org/resources/3072

  3. 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...

    http://nanohub.org/resources/3076

  4. 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...

    http://nanohub.org/resources/2844

  5. 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...

    http://nanohub.org/resources/2845

  6. NEGF Formulism Question

    Open | Responses: 1

    Hi,

    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...

    http://nanohub.org/answers/question/8

  7. Time-dependent NEGF

    Open | Responses: 1

    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...

    http://nanohub.org/answers/question/6

  8. Quantum dots

    Open | Responses: 1

    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...

    http://nanohub.org/answers/question/2

  9. Multi-gate Nanowire FET

    18 May 2007 | Tools | Contributor(s): Mincheol Shin

    3D simulator for silicon nanowire field effect transistors with multiple gates

    http://nanohub.org/resources/mgnanowirefet

  10. 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

    http://nanohub.org/resources/greentherm

  11. 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...

    http://nanohub.org/resources/2636

  12. Seon-Ho Baek

    http://nanohub.org/members/19534

  13. CNTFET Lab

    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

    http://nanohub.org/resources/cntfet

  14. Highly Efficient Thermal Transport: The Application of Carbon Nanotube Array Interfaces

    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...

    http://nanohub.org/resources/2317

  15. 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.

    http://nanohub.org/resources/1831

  16. CQT Lecture 4: Coulomb blockade and Fock space

    08 Dec 2006 | Online Presentations | Contributor(s): Supriyo Datta

    Objective: 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...

    http://nanohub.org/resources/2044

  17. CQT Lecture 3: Probabilities, Wavefunctions and Green Functions

    08 Dec 2006 | Online Presentations | Contributor(s): Supriyo Datta

    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.

    http://nanohub.org/resources/2043

  18. CQT Lecture 2: Electrical Resistance - A Simple Model

    08 Dec 2006 | Online Presentations | Contributor(s): Supriyo Datta

    Objective: 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.

    http://nanohub.org/resources/2042

  19. CQT Lecture 1: Nanodevices and Maxwell's Demon

    08 Dec 2006 | Online Presentations | Contributor(s): Supriyo Datta

    Objective: To illustrate the subtle interplay of dynamics and thermodynamicsthat distinguishes transport physics.

    http://nanohub.org/resources/2041

  20. CQT Introduction

    08 Dec 2006 | Online Presentations | Contributor(s): Supriyo Datta

    A short overview of this series of four lectures is given.

    http://nanohub.org/resources/2040