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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.

Resources (1-20 of 147)

  1. Tutorial 4a: High Bias Quantum Transport in Resonant Tunneling Diodes

    29 Mar 2011 | Online Presentations | Contributor(s): Gerhard Klimeck

    Outline: Resonant Tunneling Diodes - NEMO1D: Motivation / History / Key Insights Open 1D Systems: Transmission through Double Barrier Structures - Resonant Tunneling Introduction to RTDs:...

    http://nanohub.org/resources/11043

  2. Lecture 3: Introduction to NEGF

    08 Sep 2010 | Online Presentations | Contributor(s): Supriyo Datta

    “Electronics from the Bottom Up” is an educational initiative designed to bring a new perspective to the field of nano device engineering. It is co-sponsored by the Intel Foundation and the...

    http://nanohub.org/resources/9659

  3. Nonequilibrium Green’s functions theory: Transport and optical gain in THz quantum cascade lasers

    26 Mar 2010 | Online Presentations | Contributor(s): Tillmann Christoph Kubis

    Quantum cascade lasers (QCLs) are promising sources of coherent THz radiation. However, state of the art THz-QCLs are still limited to cryogenic temperatures. The charge transport in these QCLs is...

    http://nanohub.org/resources/8708

  4. Nanoelectronic Modeling nanoHUB Demo 2: RTD simulation with NEGF

    09 Mar 2010 | Online Presentations | Contributor(s): Gerhard Klimeck

    Demonstration of resonant tunneling diode (RTD) simulation using the RTD Simulation with NEGF Tool with a Hartree potential model showing potential profile, charge densities, current-voltage...

    http://nanohub.org/resources/8317

  5. Nanoelectronic Modeling nanoHUB Demo 1: nanoHUB Tool Usage with RTD Simulation with NEGF

    09 Mar 2010 | Online Presentations | Contributor(s): Gerhard Klimeck

    Demonstration of running tools on the nanoHUB. Demonstrated is the RTD Simulation with NEGF Tool using a simple level-drop potential model and a more realistic device using a Thomas-Fermi...

    http://nanohub.org/resources/8318

  6. Nanoelectronic Modeling Lecture 26: NEMO1D -

    09 Mar 2010 | Online Presentations | Contributor(s): Gerhard Klimeck

    NEMO1D demonstrated the first industrial strength implementation of NEGF into a simulator that quantitatively simulated resonant tunneling diodes. The development of efficient algorithms that...

    http://nanohub.org/resources/8596

  7. ECET 499N Lecture 5a: Nanoelectronics III - Datta Lecture Review

    19 Feb 2010 | Online Presentations | Contributor(s): Helen McNally

    http://nanohub.org/resources/8521

  8. Nanoelectronic Modeling Lecture 22: NEMO1D - Motivation, History and Key Insights

    07 Feb 2010 | Online Presentations | Contributor(s): Gerhard Klimeck

    The primary objective of the NEMO-1D tool was the quantitative modeling of high performance Resonant Tunneling Diodes (RTDs). The software tool was intended for Engineers (concepts, fast...

    http://nanohub.org/resources/8389

  9. Nanoelectronic Modeling Lecture 21: Recursive Green Function Algorithm

    07 Feb 2010 | Online Presentations | Contributor(s): Gerhard Klimeck

    The Recursive Green Function (RGF) algorithms is the primary workhorse for the numerical solution of NEGF equations in quasi-1D systems. It is particularly efficient in cases where the device is...

    http://nanohub.org/resources/8388

  10. Nanoelectronic Modeling Lecture 20: NEGF in a Quasi-1D Formulation

    27 Jan 2010 | Online Presentations | Contributor(s): Gerhard Klimeck, Samarth Agarwal, Zhengping Jiang

    This lecture will introduce a spatial discretization scheme of the Schrödinger equation which represents a 1D heterostructure like a resonant tunneling diode with spatially varying band edges and...

    http://nanohub.org/resources/8203

  11. Nanoelectronic Modeling Lecture 19: Introduction to RTDs - Asymmetric Structures

    27 Jan 2010 | Online Presentations | Contributor(s): Gerhard Klimeck

    This lecture explores this effect in more detail by targeting an RTD that has a deliberate asymmetric structure. The collector barrier is chosen thicker than the emitter barrier. With this...

    http://nanohub.org/resources/8202

  12. Nanoelectronic Modeling Lecture 17: Introduction to RTDs - Relaxation Scattering in the Emitter

    27 Jan 2010 | Online Presentations | Contributor(s): Gerhard Klimeck

    Realistic RTDs will have nonlinear electrostatic potential in their emitter. Typically a triangular well is formed in the emitter due to the applied bias and the emitter thus contains discrete...

    http://nanohub.org/resources/8200

  13. Lecture 2: Graphene Fundamentals

    22 Sep 2009 | Online Presentations | Contributor(s): Supriyo Datta

    Network for Computational Nanotechnology, Intel Foundation

    http://nanohub.org/resources/7384

  14. Lecture 6: Graphene PN Junctions

    22 Sep 2009 | Online Presentations | Contributor(s): Mark Lundstrom

    Outline: Introduction Electron optics in graphene Transmission across NP junctions Conductance of PN and NN junctions Discussion Summary Network for Computational Nanotechnology, Intel...

    http://nanohub.org/resources/7423

  15. Lecture 3: Low Bias Transport in Graphene: An Introduction

    18 Sep 2009 | Online Presentations | Contributor(s): Mark Lundstrom

    Outline: Introduction and Objectives Theory Experimental approach Results Discussion Summary Lecture notes are available for this lecture.

    http://nanohub.org/resources/7401

  16. ECE 659 Lecture 42: Summing Up

    04 May 2009 | Online Presentations | Contributor(s): Supriyo Datta

    http://nanohub.org/resources/6734

  17. ECE 659 Lecture 38.0: Correlations and Entanglement

    04 May 2009 | Online Presentations | Contributor(s): Supriyo Datta

    This lecture is from the series of lectures Nanoelectronics and the Meaning of Resistance.

    http://nanohub.org/resources/6731

  18. ECE 659 Lecture 36: Law of Equilibrium

    01 May 2009 | Online Presentations | Contributor(s): Supriyo Datta

    http://nanohub.org/resources/6724

  19. ECE 659 Lecture 18: NEGF Equations

    03 Mar 2009 | Online Presentations | Contributor(s): Supriyo Datta

    http://nanohub.org/resources/6427

  20. ECE 495N Lecture 34: NEGF Continued I

    10 Dec 2008 | Online Presentations | Contributor(s): Supriyo Datta

    http://nanohub.org/resources/6019

nanoHUB.org, a resource for nanoscience and nanotechnology, is supported by the National Science Foundation and other funding agencies. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.