nanoHUB.org - Tags: tight-binding: resources
http://nanohub.org/tags/
Fri, 25 Jul 2014 03:10:12 -0400HUBzero - The open source platform for scientific and educational collaborationen-gbCopyright 2014 nanoHUB.orgTagsTight Binding Parameters by DFT mapping
http://nanohub.org/resources/15173
http://nanohub.org/resources/1517310Wed, 12 Sep 2012 18:43:19 -0400OMEN Nanowire: solve the challenge
http://nanohub.org/resources/10764
http://nanohub.org/resources/10764This 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.]]>39Sat, 05 Feb 2011 08:22:21 -0500OMEN Nanowire Homework Problems
http://nanohub.org/resources/10512
http://nanohub.org/resources/10512OMEN 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 problems and find the answers to them.]]>39Mon, 24 Jan 2011 18:44:20 -0500Thermoelectric effects in semiconductor nanostructures: Role of electron and lattice properties
http://nanohub.org/resources/9787
http://nanohub.org/resources/9787This presentation covers some aspects of present development in the field of thermoelectricity and focuses particularly on the silicon nanowires as potential thermoelectric materials. The electronic and phonon dispersions are calculated and used for the calculation of thermoelectric...]]>1Wed, 06 Oct 2010 20:53:29 -0400Nanoelectronic Modeling Lecture 40: Performance Limitations of Graphene Nanoribbon Tunneling FETS due to Line Edge Roughness
http://nanohub.org/resources/9283
http://nanohub.org/resources/9283This presentation the effects of line edge roughness on graphene nano ribbon (GNR) transitors..
Learning Objectives:
GNR TFET Simulation
pz Tight-Binding Orbital Model
3D SchrÃ¶dinger-Poisson Solver
Device Simulation
1Thu, 05 Aug 2010 21:14:33 -0400Nanoelectronic Modeling Lecture 32: Strain Layer Design through Quantum Dot TCAD
http://nanohub.org/resources/9272
http://nanohub.org/resources/9272This presentation demonstrates the utilization of NEMO3D to understand complex experimental data of embedded InAs quantum dots that are selectively overgrown with a strain reducing InGaAs layer. Different alloy concentrations of the strain layer tune the optical emission and absorption...]]>1Wed, 04 Aug 2010 20:42:56 -0400Nanoelectronic Modeling Lecture 29: Introduction to the NEMO3D Tool
http://nanohub.org/resources/8599
http://nanohub.org/resources/8599This presentation provides a very high level software overview of NEMO3D. The items discussed are:
Modeling Agenda and Motivation
Tight-Binding Motivation and basic formula expressions
Tight binding representation of strainSoftware structure
NEMO3D algorithm...]]>
1Wed, 04 Aug 2010 20:42:40 -0400Nanoelectronic Modeling Lecture 28: Introduction to Quantum Dots and Modeling Needs/Requirements
http://nanohub.org/resources/8598
http://nanohub.org/resources/8598This presentation provides a very high level software overview of NEMO1D.
Learning Objectives: This lecture provides a very high level overview of quantum dots. The main issues and questions that are addressed are:
Length scale of quantum dots
Definition of a...]]>
1Tue, 20 Jul 2010 20:12:03 -0400ABACUS Exercise: Bandstructure â€“ Kronig-Penney Model and Tight-Binding Exercise
http://nanohub.org/resources/9372
http://nanohub.org/resources/9372The 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...]]>39Tue, 20 Jul 2010 18:04:09 -0400Tight-Binding Band Structure Calculation Method
http://nanohub.org/resources/9122
http://nanohub.org/resources/9122This set of slides describes on simple example of a 1D lattice, the basic idea behind the Tight-Binding Method for band structure calculation.]]>39Tue, 08 Jun 2010 18:02:23 -0400Carbon nanotube bandstructure
http://nanohub.org/resources/8807
http://nanohub.org/resources/8807Carbon nanotubes are allotropes of carbon with a cylindrical nanostructure, and can be categorized into single-walled nanotubes (SWNT) and multi-walled nanotubes (MWNT). These cylindrical carbon molecules have novel properties that make them potentially useful in many nanotechnology...]]>5Thu, 22 Apr 2010 12:39:57 -0400Nanoelectronic Modeling Lecture 25b: NEMO1D - Hole Bandstructure in Quantum Wells and Hole Transport in RTDs
http://nanohub.org/resources/8595
http://nanohub.org/resources/8595Heterostructures such as resonant tunneling diodes, quantum well photodetectors and lasers, and cascade lasers break the symmetry of the crystalline lattice. Such break in lattice symmetry causes a strong interaction of heavy-, light- and split-off hole bands. The bandstructure of holes and...]]>1Tue, 09 Mar 2010 21:55:28 -0500Lecture 2: Graphene Fundamentals
http://nanohub.org/resources/7384
http://nanohub.org/resources/7384Network for Computational Nanotechnology, Intel Foundation]]>1Wed, 23 Sep 2009 02:51:50 -0400Band Structure Lab Demonstration: Bulk Strain
http://nanohub.org/resources/6815
http://nanohub.org/resources/6815This video shows an electronic structure calculation of bulk Si using Band Structure Lab. Several powerful features of this tool are demonstrated, including the following:
band structure plots for many bands and central bands
zooming in on the top...]]>
5Fri, 12 Jun 2009 04:53:36 -0400Quantum Dot Lab Demonstration: Pyramidal Qdots
http://nanohub.org/resources/6845
http://nanohub.org/resources/6845This video shows the simulation and analysis of a pyramid-shaped quantum dot using Quantum Dot Lab. Several powerful analytic features of this tool are demonstrated, including the following:
visualization of specific 3D wavefunctions corresponding to...]]>
5Thu, 11 Jun 2009 13:06:32 -0400OMEN Nanowire Demonstration: Nanowire Simulation and Analysis
http://nanohub.org/resources/6833
http://nanohub.org/resources/6833This video shows the simulation and analysis of a nanowire using OMEN Nanowire. Several powerful analytic features of this tool are demonstrated, including the following:
variation of wire geometry
current-voltage plots
spatial variation of...]]>
5Thu, 11 Jun 2009 12:42:58 -0400OMEN Nanowire
http://nanohub.org/resources/omenwire
http://nanohub.org/resources/omenwire7Mon, 15 Dec 2008 20:17:17 -0500Real space first-principles semiempirical pseudopotentials for Fe/MgO/Fe
http://nanohub.org/resources/5997
http://nanohub.org/resources/5997A set of semiempirical pseudopotentials for the atomistic modeling of Fe/MgO/Fe tunnel junctions. See the attached document for a full description of their derivation and the modeling approach.
Document Abstract:
We present a real space density functional theory (DFT) localized...]]>
9Thu, 04 Dec 2008 04:27:33 -05001D Heterostructure Tool
http://nanohub.org/resources/1dhetero
http://nanohub.org/resources/1dheteroThe 1D Heterostructure Tool is a program for the design and simulation of 1D heterostructures.
It calculates a self-consistent solution of electron density and electrostatic potential using different density models (semiclassical density, 1-band effective mass model, 10- and 20-band...]]>
7Thu, 04 Sep 2008 17:37:27 -0400Computational Nanoscience, Lecture 17: Tight-Binding, and Moving Towards Density Functional Theory
http://nanohub.org/resources/4164
http://nanohub.org/resources/4164The purpose of this lecture is to illustrate the application of the Tight-Binding method to a simple system and then to introduce the concept of Density Functional Theory. The motivation to mapping from a wavefunction to a density-based description of atomic systems is provided, and the...]]>39Mon, 24 Mar 2008 12:17:29 -0400