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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 139)

  1. Dissipative Quantum Transport in Semiconductor Nanostructures

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    28 Dec 2011 | Publications | Contributor(s): Peter Greck

    In this work, we investigate dissipative quantum transport properties of an open system. After presenting the background of ballistic quantum transport calculations, a simple scattering mechanism, …

    https://nanohub.org/resources/12756

  2. 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

  3. Green's Functions Method Explained

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    10 Aug 2011 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

    This is a tutorial on non-equilibrium Green's functions.

    https://nanohub.org/resources/11825

  4. Tutorial 4: Far-From-Equilibrium Quantum Transport

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    29 Mar 2011 | Courses | Contributor(s): Gerhard Klimeck

    These lectures focus on the application of the theories using the nanoelectronic modeling tools NEMO 1- D, NEMO 3-D, and OMEN to realistically extended devices. Topics to be covered are realistic …

    https://nanohub.org/resources/11042

  5. 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

  6. FETToy

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    14 Feb 2006 | Tools | Contributor(s): Anisur Rahman, Jing Wang, Jing Guo, Md. Sayed Hasan, Yang Liu, Akira Matsudaira, Shaikh S. Ahmed, Supriyo Datta, Mark Lundstrom

    Calculate the ballistic I-V characteristics for conventional MOSFETs, Nanowire MOSFETs and Carbon NanoTube MOSFETs

    https://nanohub.org/resources/fettoy

  7. OMEN Nanowire: solve the challenge

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    05 Feb 2011 | Teaching Materials | Contributor(s): SungGeun Kim

    This document includes a challenging problems for OMEN Nanowire users. It challenges users to establish a nanowire transistor structure such that it satisfy the ITRS 2010 requirements.

    https://nanohub.org/resources/10764

  8. Electron Density in a Nanowire

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    30 Jan 2011 | Animations | Contributor(s): Gerhard Klimeck, Saumitra Raj Mehrotra

    Electron Density in a circular Silicon nanowire transistor.

    https://nanohub.org/resources/10666

  9. OMEN Nanowire Homework Problems

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    23 Jan 2011 | Teaching Materials | Contributor(s): SungGeun Kim

    OMEN Nanowire homework problems: anyone who has gone through the first-time user guide of OMEN Nanowire and done the examples in the guide should be able to run simulations in these homework …

    https://nanohub.org/resources/10512

  10. OMEN Nanowire Test Problems

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    24 Jan 2011 | Teaching Materials | Contributor(s): SungGeun Kim

    This test is for students who have gone through the OMEN Nanowire first-time user guide and other learning materials related to nanowire FETs.

    https://nanohub.org/resources/10515

  11. Inelastic Scattering in NEGF: Matlab Implementation and Exercises

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    31 Dec 2010 | Downloads | Contributor(s): Samiran Ganguly, Supriyo Datta

    A set of Matlab scripts has been developed illustrating the treatment of inelastic scattering in non-equilibrium Greens function (NEGF) based quantum transport models. The first script highlights the …

    https://nanohub.org/resources/10262

  12. 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

  13. Surface scattering: Made simple

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    03 Sep 2010 | Publications | Contributor(s): Dmitri Nikonov, Himadri Pal

    Surface scattering in a quantum well.

    https://nanohub.org/resources/9613

  14. ANGEL - A Nonequilibrium Green Function Solver for LEDs

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    18 Jan 2010 | Tools | Contributor(s): sebastian steiger

    An MPI-parallelized implementation of 1-D NEGF for heterostructures. Includes off-diagonal scattering. Effective mass band structure for electrons and holes. The online tool only provides basic …

    https://nanohub.org/resources/angel

  15. Resonant Tunneling Diode operation

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    09 Apr 2010 | Animations | Contributor(s): Saumitra Raj Mehrotra, Gerhard Klimeck

    A resonant tunneling diode (RTD) is a type of diode with a resonant tunneling structure that allows electrons to tunnel through various resonant states at certain energy levels. RTDs can be …

    https://nanohub.org/resources/8799

  16. Nanotechnology Animation Gallery

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    20 Apr 2010 | Teaching Materials | Contributor(s): Saumitra Raj Mehrotra, Gerhard Klimeck

    Animations and visualization are generated with various nanoHUB.org tools to enable insight into nanotechnology and nanoscience. Click on image for detailed description and larger image download. …

    https://nanohub.org/resources/8882

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

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    24 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

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

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    01 Feb 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

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

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    01 Feb 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

  20. Nanoelectronic Modeling Lecture 26: NEMO1D -

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    02 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

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