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Tags: band structure

Description

In solid-state physics, the electronic band structure of a solid describes ranges of energy that an electron is "forbidden" or "allowed" to have. It is a function of the diffraction of the quantum mechanical electron waves in the periodic crystal lattice with a specific crystal system and Bravais lattice. The band structure of a material determines several characteristics, in particular its electronic and optical properties. More information on Band structure can be found here.

Resources (1-20 of 112)

  1. ABACUS Exercise: Bandstructure – Kronig-Penney Model and Tight-Binding Exercise

    20 Jul 2010 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

    The objective of this exercise is to start with the simple Kronig-Penney model and understand formations of bands and gaps in the dispersion relation that describes the motion of carriers in 1D...

    http://nanohub.org/resources/9372

  2. ABACUS: Test for Bandstructure Lab

    10 Aug 2010 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

    This is a test that examines ones understanding of electronic structure once he/she has gone through the materials and exercises provided on the nanoHUB as part of the ABACUS Bandstructure topic...

    http://nanohub.org/resources/9493

  3. ABINIT: First-Time User Guide

    09 Jun 2009 | Teaching Materials | Contributor(s): Benjamin P Haley

    This first-time user guide provides an introduction to using ABINIT on nanoHUB. We include a very brief summary of Density Functional Theory along with a tour of the Rappture interface. We...

    http://nanohub.org/resources/6874

  4. ACUTE - Bandstructure Assignment

    07 Jul 2011 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

    This is assignment that is part of the ACUTE tool-based curricula that guides the students step by step how to implement an empirical pseudopotential method for the bandstructure calculation.

    http://nanohub.org/resources/11613

  5. Band Structure Calculation: General Considerations

    17 May 2010 | Teaching Materials | Contributor(s): Dragica Vasileska

    This set of slides explains to the users the concept of valence vs. core electrons, the implications of the adiabatic approximation on the separation of the total Hamiltonian of the system and the...

    http://nanohub.org/resources/9003

  6. Band Structure Lab Exercise

    28 Jun 2010 | Teaching Materials | Contributor(s): Gerhard Klimeck, Parijat Sengupta, Dragica Vasileska

    Investigations of the electron energy spectra of solids form one of the most active fields of research. Knowledge of band theory is essential for application to specific problems such as Gunn...

    http://nanohub.org/resources/9233

  7. Band Structure Lab: First-Time User Guide

    15 Jun 2009 | Teaching Materials | Contributor(s): Abhijeet Paul, Benjamin P Haley, Gerhard Klimeck

    This document provides useful information about Band Structure Lab. First-time users will find basic ideas about the physics behind the tool such as band formation, the Hamiltonian description,...

    http://nanohub.org/resources/6935

  8. CNTbands: First-Time User Guide

    15 Jun 2009 | Teaching Materials | Contributor(s): Xufeng Wang, Youngki Yoon

    This is a simple guide designed for first-time users of CNTbands. It gives a brief introduction of the tool and a series of tutorials to help users learn the basics of CNTbands. NCN@Purdue

    http://nanohub.org/resources/6909

  9. Computational Electronics HW - Bandstructure Calculation

    11 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

    www.eas.asu.edu/~vasileskNSF

    http://nanohub.org/resources/5033

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

    30 Apr 2008 | Teaching Materials | Contributor(s): Jeffrey C Grossman, Elif Ertekin

    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...

    http://nanohub.org/resources/4510

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

    13 Feb 2008 | Teaching Materials | Contributor(s): Jeffrey C Grossman, Elif Ertekin

    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...

    http://nanohub.org/resources/4035

  12. Description of the K.P Method for Band Structure Calculation

    05 Aug 2010 | Teaching Materials | Contributor(s): Dragica Vasileska

    This set of slides describes the k.p mehod for band structure calculation.

    http://nanohub.org/resources/9454

  13. Empirical Pseudopotential Method: Theory and Implementation

    17 May 2010 | Teaching Materials | Contributor(s): Dragica Vasileska

    This tutorial first teaches the users the basic theory behind the Empirical Pseudopotential (EPM)Bandstructure Calculation method. Next, the implementation details of the method are described and...

    http://nanohub.org/resources/8999

  14. Energy Bands as a Function of the Geometry of the n-Well Potential: an Exercise

    05 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

    Explores the position and the width of the bands as a function of the 10-barrier potential parameters. NSF

    http://nanohub.org/resources/4873

  15. Finite Height Quantum Well: an Exercise for Band Structure

    31 Jan 2008 | Teaching Materials | Contributor(s): David K. Ferry

    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...

    http://nanohub.org/resources/3949

  16. Homework Assignment: Periodic Potentials

    31 Jan 2008 | Teaching Materials | Contributor(s): David K. Ferry

    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...

    http://nanohub.org/resources/3950

  17. Illinois ECE 440: Diffusion and Energy Band Diagram Homework

    28 Jan 2010 | Teaching Materials | Contributor(s): Mohamed Mohamed

    This homework covers Diffusion of Carriers, Built-in Fields and Metal semiconductor junctions.

    http://nanohub.org/resources/8264

  18. Nanotechnology Animation Gallery

    22 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....

    http://nanohub.org/resources/8882

  19. Periodic Potential Lab: First-Time User Guide

    07 Jun 2009 | Teaching Materials | Contributor(s): Abhijeet Paul, Benjamin P Haley, Gerhard Klimeck, SungGeun Kim, Lynn Zentner

    This document provides guidance to first-time users of the Periodic Potential Lab tool. It offers basic information about solutions to the Schröedinger Equation in case of periodic potential...

    http://nanohub.org/resources/6855

  20. Periodic Potentials and Bandstructure: an Exercise

    02 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

    This exercise teaches the students that in the case of strong coupling between the neighboring wells in square and Coulomb periodic potential wells electrons start to behave as free electrons and...

    http://nanohub.org/resources/4851

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