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 187)

  1. 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...

    https://nanohub.org/resources/2845

  2. 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...

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

  3. 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...

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

  4. 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...

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

  5. Multi-gate Nanowire FET

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

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

    https://nanohub.org/resources/mgnanowirefet

  6. 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

    https://nanohub.org/resources/greentherm

  7. 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...

    https://nanohub.org/resources/2636

  8. Seon-Ho Baek

    https://nanohub.org/members/19534

  9. 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

    https://nanohub.org/resources/cntfet

  10. 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...

    https://nanohub.org/resources/2317

  11. 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.

    https://nanohub.org/resources/1831

  12. 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...

    https://nanohub.org/resources/2044

  13. 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.

    https://nanohub.org/resources/2043

  14. 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.

    https://nanohub.org/resources/2042

  15. 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.

    https://nanohub.org/resources/2041

  16. CQT Introduction

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

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

    https://nanohub.org/resources/2040

  17. 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...

    https://nanohub.org/resources/2039

  18. MOSCNT: code for carbon nanotube transistor simulation

    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...

    https://nanohub.org/resources/1989

  19. recursive algorithm for NEGF in Matlab

    13 Nov 2006 | Downloads | Contributor(s): Dmitri Nikonov, Siyu Koswatta

    This zip-archive contains two Matlab functions for the recursive solution of the partial matrix inversion and partial 3-matrix multiplication used in the non-equilibrium Green’s function (NEGF)...

    https://nanohub.org/resources/1983

  20. Multidimensional nanoscale device modeling: the finite element method applied to the non-equilibrium Green's function formalism

    31 Oct 2006 | Papers | Contributor(s): Eric Polizzi, Supriyo Datta

    This work deals with the modeling and the numerical simulation of quantum transport in multidimensional open nanoscale devices. The electron transport in the device is described using the...

    https://nanohub.org/resources/1935