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 182)

  1. 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

  2. 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

  3. Seon-Ho Baek

    http://nanohub.org/members/19534

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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

  11. 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

  12. 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...

    http://nanohub.org/resources/2039

  13. 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...

    http://nanohub.org/resources/1989

  14. 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)...

    http://nanohub.org/resources/1983

  15. 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...

    http://nanohub.org/resources/1935

  16. Non Equilibrium Green's Functions for Dummies: Introduction to the One Particle NEGF equations

    30 Oct 2006 | Papers | Contributor(s): Magnus Paulsson

    Non equilibrium Green's function methods are regularly used to calculate current and charge densities in nanoscale (both molecular and semiconductor) conductors under bias. This method is mainly...

    http://nanohub.org/resources/1932

  17. Modeling Quantum Transport in Nanoscale Transistors

    30 Oct 2006 | Papers | Contributor(s): Ramesh Venugopal

    As critical transistor dimensions scale below the 100 nm (nanoscale) regime, quan- tum mechanical effects begin to manifest themselves and affect important device performance metrics....

    http://nanohub.org/resources/1930

  18. Carbon Nanotube Electronics: Modeling, Physics, and Applications

    30 Oct 2006 | Papers | Contributor(s): Jing Guo

    In recent years, significant progress in understanding the physics of carbon nanotube electronic devices and in identifying potential applications has occurred. In a nanotube, low bias...

    http://nanohub.org/resources/1928

  19. A Three-Dimensional Quantum Simulation of Silicon Nanowire Transistors with the Effective-Mass Approximation

    30 Oct 2006 | Papers | Contributor(s): Jing Wang, Eric Polizzi, Mark Lundstrom

    The silicon nanowire transistor (SNWT) is a promising device structure for future integrated circuits, and simulations will be important for understanding its device physics and assessing its...

    http://nanohub.org/resources/1926

  20. Electrical Resistance: an Atomistic View

    26 Oct 2006 | Papers | Contributor(s): Supriyo Datta

    This tutorial article presents a “bottom-up” view of electrical resistance starting from something really small, like a molecule, and then discussing the issues that arise as we move to...

    http://nanohub.org/resources/1919