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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.

Online Presentations (1-20 of 65)

  1. nanoHUB-U FoN Basic Concepts: Scientific Overview

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    21 Dec 2011 | Online Presentations | Contributor(s): Supriyo Datta

    https://nanohub.org/resources/12726

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

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    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: Linear …

    https://nanohub.org/resources/11043

  3. Lecture 3: Thermoelectricity: Energy from heat

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    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 …

    https://nanohub.org/resources/9659

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

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    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 …

    https://nanohub.org/resources/8708

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

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    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 …

    https://nanohub.org/resources/8317

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

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    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 potential …

    https://nanohub.org/resources/8318

  7. Nanoelectronic Modeling Lecture 26: NEMO1D -

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    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 …

    https://nanohub.org/resources/8596

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

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

    https://nanohub.org/resources/8521

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

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    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 turn-around, …

    https://nanohub.org/resources/8389

  10. Nanoelectronic Modeling Lecture 21: Recursive Green Function Algorithm

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    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 …

    https://nanohub.org/resources/8388

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

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    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 …

    https://nanohub.org/resources/8203

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

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    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 set-up …

    https://nanohub.org/resources/8202

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

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    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 quasi …

    https://nanohub.org/resources/8200

  14. Lecture 2: Graphene Fundamentals

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

    Network for Computational Nanotechnology, Intel Foundation

    https://nanohub.org/resources/7384

  15. Lecture 6: Graphene PN Junctions

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    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 …

    https://nanohub.org/resources/7423

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

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    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. Network for Computational Nanotechnology, …

    https://nanohub.org/resources/7401

  17. ECE 659 Lecture 42: Summing Up

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

    https://nanohub.org/resources/6734

  18. ECE 659 Lecture 38.0: Correlations and Entanglement

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

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

    https://nanohub.org/resources/6731

  19. ECE 659 Lecture 36: Law of Equilibrium

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

    https://nanohub.org/resources/6724

  20. ECE 659 Lecture 18: NEGF Equations

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

    https://nanohub.org/resources/6427

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