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Tags: band structure

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Learning Modules

  • 5.9 Ranking Fodor: Bandstructure of Carbon Nanotubes ...

    Bandstructure of Carbon Nanotubes and Nanoribbons

    Type Learning Modules
    Contributor(s) James K Fodor, Seokmin Hong, Jing Guo
    Date 14 Jun. 2007
    Avg. Rating 0.0 out of 5 stars  (0)
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    This learning module introduces users to the Carbon-Nano Bands simulation tool, which simulates the bandstructure of Carbon Nanotubes (CNTs) and Nanoribbons (CNRs). To gives users a strong background in bandstructure, the module starts with sections that introduce bandstructure basics. To this ...

  • 5.6 Ranking Fodor: Introduction to CNTbands

    Introduction to CNTbands

    Type Learning Modules
    Contributor(s) James K Fodor, Jing Guo
    Date 28 Jun. 2007
    Avg. Rating 0.0 out of 5 stars  (0)
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    This learning module introduces nanoHUB users to the CNTbands simulator. A brief introduction to CNTbands is presented, followed by voiced presentations featuring the simulator in action. Upon completion of this module, users should be able to use this simulator to gain valuable insight into the ...

Teaching Materials

  • 10.0 Ranking Grossman: Computational Nanoscience, Lecture ...

    Computational Nanoscience, Lecture 4: Geometry Optimization and Seeing What You're Doing

    Type Teaching Materials
    Contributor(s) Jeffrey Grossman, Elif Ertekin
    Date 13 Feb. 2008
    Avg. Rating 5.0 out of 5 stars  (1)
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    In this lecture, we discuss various methods for finding the ground state structure of a given system by minimizing its energy. Derivative and non-derivative methods are discussed, as well as the importance of the starting guess and how to find or generate good initial structures. We also briefly ...

  • 0.0 Ranking Ferry: Bandstructure Homework Assignment ...

    Bandstructure Homework Assignment - Finite Height Quantum Well

    Type Teaching Materials
    Contributor(s) David K. Ferry
    Date 31 Jan. 2008
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    Use the Resonant Tunneling Diodes simulation tool on nanoHUB to explore the effects of finite height quantum wells. Looking at a 2 barrier device, 300 K, no bias, other standard variables, and 3 nm thick barriers and a 7 nm quantum well, determine the energies of the two lowest quasi-bound states.

  • 0.0 Ranking Ferry: Homework Assignment: Periodic ...

    Homework Assignment: Periodic Potentials

    Type Teaching Materials
    Contributor(s) David K. Ferry
    Date 31 Jan. 2008
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    Using the Periodic Potential Lab on nanoHUB determine the allowed bands for an energy barrier of 5 eV, a periodicity W = 0.5nm, and a barrier thickness of 0.1nm. How do these bands change if the barrier thickness is changed to 0.2 nm?

  • 0.0 Ranking Grossman: Computational Nanoscience, Lecture ...

    Computational Nanoscience, Lecture 19: Band Structure and Some In-Class Simulation: DFT for Solids

    Type Teaching Materials
    Contributor(s) Jeffrey Grossman, Elif Ertekin
    Date 05 May. 2008
    Avg. Rating 0.0 out of 5 stars  (0)
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    In this class we briefly review band structures and then spend most of our class on in-class simulations. Here we use the DFT for molecules and solids (Siesta) course toolkit. We cover a variety of solids, optimizing structures, testing k-point convergence, computing cohesive energies, and ...

Publications

  • 0.0 Ranking Wang: Device Physics and Simulation of ...

    Device Physics and Simulation of Silicon Nanowire Transistors

    Type Publications
    Contributor(s) Jing Wang
    Date 28 Sep. 2006
    Avg. Rating 0.0 out of 5 stars  (0)
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    As the conventional silicon metal-oxide-semiconductor field-effect transistor (MOSFET) approaches its scaling limits, many novel device structures are being extensively explored. Among them, the silicon nanowire transistor (SNWT) has attracted broad attention from both the semiconductor ...

Downloads

  • 8.8 Ranking Datta: MATLAB Scripts for "Quantum ...

    MATLAB Scripts for "Quantum Transport: Atom to Transistor"

    Type Downloads
    Contributor(s) Supriyo Datta
    Date 15 Mar. 2005
    Avg. Rating 5.0 out of 5 stars  (2)
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    Tinker with quantum transport models! Download the MATLAB scripts used to demonstrate the physics described in Supriyo Datta's book Quantum Transport: Atom to Transistor. These simple models are less than a page of code, and yet they reproduce much of the fundamental physics observed in experiments.

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