
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.

ab initio Model for Mobility and Seebeck coefficient using Boltzmann Transport (aMoBT) equation
15 May 2015   Contributor(s):: Alireza Faghaninia, Joel Ager (editor), Cynthia S Lo (editor)
ab initio electronic transport model to calculate lowfield electrical mobility and Seebeck coefficient of semiconductors in Boltzmann transport framework.

Lecture 4: The abinitio Wigner Monte Carlo Method
15 Nov 2014   Contributor(s):: Jean Michel D Sellier
In this lecture, Dr. Sellier discusses the abinitio Wigner Monte Carlo method for the simulation of strongly correlated systems.

IMA 2013 UQ: DFTbased Thermal Properties: Three Levels of Error Management
10 Feb 2014   Contributor(s):: Kurt Lejaeghere
It is often computationally expensive to predict finitetemperature properties of a crystal from densityfunctional theory (DFT). The temperaturedependent thermal expansion coefficient α, for example, is calculated from the phonon spectrum, and the melting temperature Tm can only be obtained...

Largescale first principles configuration interaction calculations of optical absorption in boron clusters
07 Mar 2012   Contributor(s):: Ravindra L Shinde
We have performed systematic largescale allelectron correlated calculations on boron clustersBn (n=2–5), to study their linear optical absorption spectra. Several possible isomers of each cluster were considered, and their geometries were optimized at the coupledcluster singles doubles(CCSD)...

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 manybody Schrodinger equation in Hartree Fock and Density Functional Theory and numerical approximations used in computer simulations.

OPV: Time Domain Ab Initio Studies of OrganicInorganic 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 DOEfunded Research Centers at Lawrence Berkeley National Laboratory.

OPV: Large Scale Ab Initio Simulation for Charge Transport in Disordered Organic Systems
21 Jan 2011   Contributor(s):: LinWang Wang
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 DOEfunded Research Centers at Lawrence Berkeley National Laboratory.

Tutorial 3: Materials Simulation by FirstPrinciples Density Functional Theory
14 Sep 2010   Contributor(s):: Umesh V. Waghmare
This twopart lecture will provide an introduction to firstprinciples 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.

Tutorial 3b: Materials Simulation by FirstPrinciples Density Functional Theory II
09 Sep 2010   Contributor(s):: Umesh V. Waghmare

Ripples and Warping of Graphene: A Theoretical Study
19 May 2010   Contributor(s):: Umesh V. Waghmare
We use firstprinciples density functional theory based analysis to understand formation of ripples in graphene and related 2D materials. For an infinite graphene, we show that ripples are linked with a low energy branch of phonons that exhibits quadratic dispersion at long wavelengths. Many...

nanoMATERIALS SeqQuest DFT
04 Feb 2008   Contributor(s):: Ravi Pramod Kumar Vedula, Greg Bechtol, Benjamin P Haley, Alejandro Strachan
DFT calculations of materials

ABINIT: FirstTime User Guide
09 Jun 2009   Contributor(s):: Benjamin P Haley
This firsttime 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...

Real space firstprinciples semiempirical pseudopotentials for Fe/MgO/Fe
03 Dec 2008   Contributor(s):: Kirk Bevan
A 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 basis set...

MSE 597G Lecture 6: Interatomic potentials III
12 Nov 2008   Contributor(s):: Alejandro Strachan
Reactive force fields,Parameterization of interatomic potentials

Northwestern University Initiative for Teaching Nanoscience
12 Aug 2008   Contributor(s):: Baudilio Tejerina
This package allows users to study and analyze of molecular properties using various electronic structure methods.

ABINIT
13 May 2004   Contributor(s):: Amritanshu Palaria, Xufeng Wang, Benjamin P Haley, Matteo Mannino, Gerhard Klimeck
Run the community code ABINIT for electronic structure calculations under density functional theory through a convenient graphical user interface

Theoretical Electron Density Visualizer
01 Jul 2008   Contributor(s):: Baudilio Tejerina
TEDVis calculates and displays 3D maps of molecular ED and its derivatives from the wave function.

BNC Annual Research Review: An Introduction to PRISM and MEMS Simulation
04 Jun 2008   Contributor(s):: Jayathi Murthy
This presentation is part of a collection of presentations describing the projects, people, and capabilities enhanced by research performed in the Birck Center, and a look at plans for the upcoming year.

Dynamics of Quantum Fluids: Path integral and Semiclassical Methods
21 May 2008   Contributor(s):: Nancy Makri
The interplay of manybody nonlinear interactions and quantum mechanical effects such as zeropoint motion or identical particle exchange symmetries lead to intriguing phenomena in lowtemperature fluids, some of which remain poorly understood. Recent advances in theory and methodology have...