Tags: density functional theory

Resources (1-20 of 33)

  1. High Throughput DFT Calculation Resources

    16 Jun 2017 | | Contributor(s):: Austin Jacob Zadoks, Karthik Guda Vishnu, Sam Reeve, David M Guzman, Alejandro Strachan

    Python functions / libraries / other resources useful for running High Throughput (query-based) DFT calculations on nanoHUB

  2. Introduction to Computational Modeling - Schrödinger Equation, Density Functional Theory (DFT), Kohn-Sham Method, DFT Code SIESTA

    16 Jun 2016 | | Contributor(s):: Lan Li

    This instructional video is part 1 in a two part series.  It provides anintroduction to computational modeling, including motivation for studyingthis topic.  The Schrödinger Equation is reviewed and its relationship toDensity Functional Theory (DFT) is explained.  The...

  3. Introduction to Computational Modeling - Input Parameters for SIESTA Simulation

    16 Jun 2016 | | Contributor(s):: Lan Li

    This instructional video is part 2 in a two part series.  It  explains how to set up input parameters for the SIESTA simulation tool.

  4. Molecular Exploration Tool

    01 Aug 2014 | | Contributor(s):: Xueying Wang, nicolas onofrio, Alejandro Strachan, David M Guzman

    The tool can display the molecule structures and run Lammps simulations.

  5. Reproducing DFT calculations of Al2O3/GaAs interface structure and Fermi level pinning

    20 Oct 2014 | | Contributor(s):: Alejandro Strachan

    The goal of this resource is to demonstrate how to reproduce the results of the following research paper using the nanoMATERIALS SeqQuest DFT simulation tool on nanoHUB.  In addition to reproducing the paper's results, users can run variations of the simulation to explore the...

  6. OnlineSimulation tutorial and assignment: bonding curves in H2 and He2 molecules

    18 Feb 2015 | | Contributor(s):: Alejandro Strachan

    In this tutorial students will use density functional theory (DFT) calculations using the nanoHUB tool SeqQuest to study bonding in two simple molecules: H2 and He2. The tutorial shows how to compute energy as a function of bond distance and extract the equilibrium bond distance and bond...

  7. OnlineSimulation tutorial and assignment: electronic structure and spin in O2 molecule

    18 Feb 2015 | | Contributor(s):: Alejandro Strachan

    In this tutorial students will use density functional theory (DFT) calculations using the nanoHUB tool SeqQuest to study the electronic structure and bonding in the O2 molecular. The tutorial shows how to predict the relaxed bond distance in O2 (i.e. minimum energy structure) both for...

  8. OnlineSimulation tutorial and assignment: electronic structure and spin of the O atom

    18 Feb 2015 | | Contributor(s):: Alejandro Strachan

    In this tutorial students will use density functional theory (DFT) calculations using the nanoHUB tool SeqQuest to study the electronic structure of the oxygen atom. The tutorial shows how to compute energy for the spin 1 (triplet) and spin 0 (singlet) states and analyze the exchange...

  9. Lecture 3: The Wigner Monte Carlo Method for Density Functional Theory

    15 Nov 2014 | | Contributor(s):: Jean Michel D Sellier

    In this lecture, Dr. Sellier discusses the Wigner Monte Carlo method in the framework of density functional theory (DFT).

  10. Energies and Lifetimes with Complex-Scaling

    02 Apr 2012 | | Contributor(s):: Daniel Lee Whitenack, Adam Wasserman

    Calculate the resonance energies and lifetimes of a user-defined potential with a uniform complex-scaling transformation.

  11. Computational Investigation of Point Defect Formation and Migration in Nuclear Fuels

    09 Feb 2012 | | Contributor(s):: Susan Sinnott

    The stabilities of selected fission products are investigated as a function of stoichiometry in uranium oxide. The approach is density functional theory (DFT) that is used to calculate the incorporation and solution energies of solid and gaseous fission products at the anion and cation vacancy...

  12. Density Functional Theory: A great physics success story

    23 Feb 2012 | | Contributor(s):: Kieron Burke

    Density functional theory began with the work of Thomas and Fermi, at about the same time as Schroedinger wrote his famous equation. I will explain in general terms what density functional theory is and describe some problems of current interest.

  13. Tutorial 1: Atomistic Material Science - ab initio simulations of materials

    25 Aug 2011 | | Contributor(s):: Alejandro Strachan

    This lecture introduces first principles electronic structure calculations of materials properties.It describes the approximations made to the many-body Schrodinger equation in Hartree Fock and Density Functional Theory and numerical approximations used in computer simulations.

  14. 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.

  15. OPV: Time Domain Ab Initio Studies of Organic-Inorganic Composites for Solar Cells

    21 Jan 2011 | | Contributor(s):: Oleg Prezhdo

    This presentation was part of the "Organic Photovoltaics: Experiment and Theory" workshop at the 2010 Users' Meeting of the Molecular Foundry and the National Center for Electron Microscopy, both DOE-funded Research Centers at Lawrence Berkeley National Laboratory.

  16. OPV: First Principles Studies of the Electronic Structure of Organic Solids and Interfaces

    20 Jan 2011 | | Contributor(s):: Sahar Sharifzadeh

    This presentation was part of the "Organic Photovoltaics: Experiment and Theory" workshop at the 2010 Users' Meeting of the Molecular Foundry and the National Center for Electron Microscopy, both DOE-funded Research Centers at Lawrence Berkeley National Laboratory.

  17. 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.

  18. Tutorial 3: Materials Simulation by First-Principles Density Functional Theory

    14 Sep 2010 | | Contributor(s):: Umesh V. Waghmare

    This two-part lecture will provide an introduction to first-principles density functional theory based methods for simulation of materials, with a focus on determination of interatomic force constants and vibrational spectra of nano- structures and extended periodic materials.

  19. Tutorial 3b: Materials Simulation by First-Principles Density Functional Theory II

    09 Sep 2010 | | Contributor(s):: Umesh V. Waghmare

  20. Tutorial 3a: Materials Simulation by First-Principles Density Functional Theory I

    09 Sep 2010 | | Contributor(s):: Umesh V. Waghmare

    This lecture provides an introduction to first-principles density functional theory based methods for simulation of materials, with a focus on determination of interatomic force constants and vibrational spectra of nano-structures and extended periodic materials.Outline:Phonons, soft...