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Periodic Potential Lab Demonstration: Standard Kroenig-Penney Model
Animations | 11 Jun 2009 | Contributor(s):: Gerhard Klimeck, Benjamin P Haley
This video shows the simulation of a 1D square well using the Periodic Potential Lab. The calculated output includes plots of the allowed energybands, a table of the band edges and band gaps, plots of reduced and expanded dispersion relations, and plots comparing the dispersion relations to those...
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Quantum Dot Lab Demonstration: Pyramidal Qdots
Animations | 11 Jun 2009 | Contributor(s):: Gerhard Klimeck, Benjamin P Haley
This 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.
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The Diatomic Molecule
Online Presentations | 31 Mar 2009 | Contributor(s):: Vladimir I. Gavrilenko
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Theoretical Electron Density Visualizer
Tools | 01 Jul 2008 | Contributor(s):: Baudilio Tejerina
TEDVis calculates and displays 3D maps of molecular ED and its derivatives from the wave function.
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Computational Nanoscience, Lecture 20: Quantum Monte Carlo, part I
Teaching Materials | 15 May 2008 | Contributor(s):: Elif Ertekin, Jeffrey C Grossman
This lecture provides and introduction to Quantum Monte Carlo methods. We review the concept of electron correlation and introduce Variational Monte Carlo methods as an approach to going beyond the mean field approximation. We describe briefly the Slater-Jastrow expansion of the wavefunction, and...
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UV/Vis Spectra simulator
Tools | 04 Mar 2008 | Contributor(s):: Baudilio Tejerina
This tool computes molecular electronic spectra.
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Introduction to Quantum Dot Lab
Online Presentations | 31 Mar 2008 | Contributor(s):: Sunhee Lee, Hoon Ryu, Gerhard Klimeck
The nanoHUB tool "Quantum Dot Lab" allows users to compute the quantum mechanical "particle in a box" problem for a variety of different confinement shapes, such as boxes, ellipsoids, disks, and pyramids. Users can explore, interactively, the energy spectrum and orbital...
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CNDO/INDO
Tools | 09 Oct 2007 | Contributor(s):: Baudilio Tejerina, Jeff Reimers
Semi-empirical Molecular Orbital calculations.
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Computational Nanoscience, Lecture 4: Geometry Optimization and Seeing What You're Doing
Teaching Materials | 13 Feb 2008 | 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 importance of the starting guess and how to find or generate good initial structures. We also briefly...
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Periodic Potential Lab
Tools | 19 Jan 2008 | Contributor(s):: Abhijeet Paul, Junzhe Geng, Gerhard Klimeck
Solve the time independent schrodinger eqn. for arbitrary periodic potentials
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Quantum Ballistic Transport in Semiconductor Heterostructures
Papers | 27 Aug 2007 | Contributor(s):: Michael McLennan
The development of epitaxial growth techniques has sparked a growing interest in an entirely quantum mechanical description of carrier transport. Fabrication methods, such as molecular beam epitaxy (MBE), allow for growth of ultra-thin layers of differing material compositions. Structures can be...
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Quantum Dot Lab Learning Module: An Introduction
Online Presentations | 02 Jul 2007 | Contributor(s):: James K Fodor, Jing Guo
THIS MATERIAL CORRESPONDS TO AN OLDER VERSION OF QUANTUM DOT LAB THAN CURRENTLY AVAILABLE ON nanoHUB.org.
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ElectroMat
Tools | 27 Mar 2007 | Contributor(s):: Alexander Gavrilenko, Heng Li
Kronig-Penney Potential
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Periodic Potential
Tools | 21 Feb 2007 | Contributor(s):: Heng Li, Alexander Gavrilenko
Calculation of the allowed and forbidden states in a periodic potential
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CGTB
Tools | 15 Jun 2006 | Contributor(s):: Gang Li, yang xu, Narayan Aluru
Compute the charge density distribution and potential variation inside a MOS structure by using a coarse-grained tight binding model
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Quantum Dot Lab
Tools | 12 Nov 2005 | Contributor(s):: Prasad Sarangapani, James Fonseca, Daniel F Mejia, James Charles, Woody Gilbertson, Tarek Ahmed Ameen, Hesameddin Ilatikhameneh, Andrew Roché, Lars Bjaalie, Sebastian Steiger, David Ebert, Matteo Mannino, Hong-Hyun Park, Tillmann Christoph Kubis, Michael Povolotskyi, Michael McLennan, Gerhard Klimeck
Compute the eigenstates of a particle in a box of various shapes including domes, pyramids and multilayer structures.