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 120)

  1. 1D Heterostructure Tool

    04 Aug 2008 | | Contributor(s):: Arun Goud Akkala, Sebastian Steiger, Jean Michel D Sellier, Sunhee Lee, Michael Povolotskyi, Tillmann Christoph Kubis, Hong-Hyun Park, Samarth Agarwal, Gerhard Klimeck, James Fonseca, Archana Tankasala, Kuang-Chung Wang, Chin-Yi Chen, Fan Chen

    Poisson-Schrödinger Solver for 1D Heterostructures

  2. 2010 NCN@Purdue Summer School: Electronics from the Bottom Up

    20 Apr 2010 |

    Electronics from the Bottom Up seeks to bring a new perspective to electronic devices – one that is designed to help realize the opportunities that nanotechnology presents.

  3. A Tutorial for Nanoelectronics Simulation Tools

    03 Jul 2007 | | Contributor(s):: James K Fodor, Jing Guo

    This learning module introduces nanoHUB users to some of the available simulators. The simulators discussed are FETToy, nanoMOS, Schred, CNTbands, and QDot Lab. For each simulator, a brief introduction to the simulator is presented, followed by voiced presentations featuring the simulator in...

  4. ABACUS - Assembly of Basic Applications for Coordinated Understanding of Semiconductors

    16 Jul 2008 | | Contributor(s):: Xufeng Wang, Dragica Vasileska, Gerhard Klimeck

    One-stop-shop for teaching semiconductor device education

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

    20 Jul 2010 | | 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 periodic potentials. The second exercise examines the behavior of the bands at the Brillouin zone...

  6. ABACUS: Test for Bandstructure Lab

    09 Aug 2010 | | 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 page and running the Bandstructure Lab.

  7. ABINIT: First-Time User Guide

    09 Jun 2009 | | 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 discuss the default simulation (what happens if you don't change any inputs, and just hit "simulate") as...

  8. ACUTE - Bandstructure Assignment

    07 Jul 2011 | | 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.

  9. Additional Tutorials on Selected Topics in Nanotechnology

    23 Mar 2011 | | Contributor(s):: Gerhard Klimeck, Umesh V. Waghmare, Timothy S Fisher, N. S. Vidhyadhiraja

    Select tutorials in nanotechnology, a part of the 2010 NCN@Purdue Summer School: Electronics from the Bottom Up.

  10. AQME - Advancing Quantum Mechanics for Engineers

    12 Aug 2008 | | Contributor(s):: Gerhard Klimeck, Xufeng Wang, Dragica Vasileska

    One-stop-shop for teaching quantum mechanics for engineers

  11. Atomistic Alloy Disorder in Nanostructures

    26 Feb 2007 | | Contributor(s):: Gerhard Klimeck

    Electronic structure and quantum transport simulations are typically performed in perfectly ordered semiconductor structures. Bands and modes are defined resulting in quantized conduction and discrete states. But what if the material is fundamentally disordered? What if the disorder is at the...

  12. Band Structure Calculation: General Considerations

    17 May 2010 | | 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 mean-field approximation used in ab initio bandstructure approaches. It then gives systematic...

  13. Band Structure Lab Demonstration: Bulk Strain

    12 Jun 2009 | | Contributor(s):: Gerhard Klimeck

    This video shows an electronic structure calculation of bulk Si using Band Structure Lab. Several powerful features of this tool are demonstrated.

  14. Band Structure Lab Exercise

    28 Jun 2010 | | 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 diodes, tunnel diodes, photo-detectors etc. There are several standard methods to compute the band...

  15. Band Structure Lab: First-Time User Guide

    15 Jun 2009 | | 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, and other aspects. Additionally, we provide explanations of the input settings and the results of the...

  16. Bandstructure in Nanoelectronics

    01 Nov 2005 | | Contributor(s):: Gerhard Klimeck

    This presentation will highlight, for nanoelectronic device examples, how the effective mass approximation breaks down and why the quantum mechanical nature of the atomically resolved material needs to be included in the device modeling. Atomistic bandstructure effects in resonant tunneling...

  17. Bandstructure of Carbon Nanotubes and Nanoribbons

    14 Jun 2007 | | Contributor(s):: James K Fodor, Seokmin Hong, Jing Guo

    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...

  18. Berkeley GW

    27 Sep 2009 | | Contributor(s):: Alexander S McLeod, Peter Doak, Sahar Sharifzadeh, Jeffrey B. Neaton

    This is an educational tool that illustrates the calculation of the electronic structure of materials using many-body perturbation theory within the GW approximation

  19. Bulk Bandstructure in MATLAB: Pseudopotential Method

    08 Feb 2010 | | Contributor(s):: Muhanad Zaki

    This code (MATLAB) readily calculates and plots the bandstructure of Silicon (bulk) using the empirical pseudopotential method.Detailed instructions are in the compressed archive.I hope it would be a useful/interesting educational toolNote: If you are running this code in a non-Windows OS (e.g....

  20. CNTbands

    14 Dec 2006 | | Contributor(s):: Gyungseon Seol, Youngki Yoon, James K Fodor, Jing Guo, Akira Matsudaira, Diego Kienle, Gengchiau Liang, Gerhard Klimeck, Mark Lundstrom, Ahmed Ibrahim Saeed

    This tool simulates E-k and DOS of CNTs and graphene nanoribbons.