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difference between basis, lattice, unit cell, primitive cell? how can we find them in a Si structure?
Open | Responses: 4
in Si crystal Structure (which is like Diamond)…how can we exactly find basis, lattice, unit cell, primitive cell….and to understand their definitions more...
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
ABACUS: Test for Crystal Viewer Tool
04 Aug 2010 | | Contributor(s):: Dragica Vasileska, Gerhard Klimeck
The objective of this test is to give an idea to a self-learning students or to instructors in the case this test is used in a classroom the level of understanding of this topic when students have gone through the learning material, worked exercises and have completed the assignments and the...
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...
Assembly for Nanotechnology Survey Courses
05 Nov 2008 | | Contributor(s):: Gerhard Klimeck, Dragica Vasileska
Educational Tools for Classroom and Homework use to introduce nanotechnology concepts
Band Structure Lab Demonstration: Bulk Strain
03 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.
09 Apr 2010 | | Contributor(s):: Saumitra Raj Mehrotra, Gerhard Klimeck
A fullerene is any molecule composed entirely of carbon, and can take the form of hollow spheres, ellipsoids, or tubes. Spherical fullerenes (often referred to as "buckyballs") are one of the known structurally different form of carbon. C60 are the most common of buckyball structures. …
Carrier Statistics Lab: First-Time User Guide
05 Mar 2009 | | Contributor(s):: Abhijeet Paul, Gerhard Klimeck, Benjamin P Haley, Saumitra Raj Mehrotra
This first-time user guide is an introduction to the Carrier Statistics Lab . It provides basic definitions, guidance on how to run the tool, and suggested exercises to help users get accustomed to the idea of distribution functions as well as how these functions are used in determining the...
CHM 696 Lecture 6: Supramolecular Materials/Crystal Engineering and Metal-Organic Frameworks I
07 Mar 2011 | | Contributor(s):: Alexander Wei
CHM 696 Lecture 7: Supramolecular Materials/Crystal Engineering and Metal-Organic Frameworks II
CHM 696 Lecture 8: Self-Assembled Monolayers/Supramolecular Surface Science I
CHM 696 Lecture 9: Self-Assembled Monolayers/Supramolecular Surface Science II
Crystal Directions and Miller Indices
04 Jun 2010 | | Contributor(s):: David K. Ferry, Dragica Vasileska, Gerhard Klimeck
Miller indices are a notation system in crystallography for planes and directions in crystal lattices. In particular, a family of lattice planes is determined by three integers, l, m, and n, the Miller indices. They are written (lmn) and denote planes orthogonal to a direction (l,m,n) in the...
08 Jul 2011 | | Contributor(s):: Dragica Vasileska, Gerhard Klimeck
This set of lecture notes describe crystalline structure and different types of crystal lattices.
In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. A crystal structure is composed of a basis, a set of atoms arranged in a particular way, and a lattice. The basis is located upon the points of a lattice spanned by lattice vectors, which is an...
Crystal Structures - Packing Efficiency Exercise
14 Jun 2010 | | Contributor(s):: Dragica Vasileska, Gerhard Klimeck
Consider the most efficient way of packing together equal-sized spheres and stacking close-packed atomic planes in three dimensions. For example, if plane A lies beneath plane B, there are two possible ways of placing an additional atom on top of layer B. If an additional layer was placed...
Crystal Viewer Demonstration: Bravais Lattices
03 Jun 2009 | | Contributor(s):: Gerhard Klimeck, Benjamin P Haley
This video shows the exploration of several crystal structures using the Crystal Viewer tool. Several powerful features of this tool are demonstrated.
Crystal Viewer Demonstration: Bravais Lattices 2
This video shows the exploration of several crystal structures using the Crystal Viewer tool. Several powerful features of this tool are demonstrated
Crystal Viewer Demonstration: Various Crystal Systems
This video shows the use of the Crystal Viewer Tool to visualize several crystal systems, including Si, GaAs, C60 Buckyball, and a carbon nanotube. Crystal systems are rotated in 3D, zoomed in and out, and the lattice style changes from sticks and balls to lines to spheres.
Crystal Viewer Lab Exercise
28 Jun 2010 | | Contributor(s):: Gerhard Klimeck, Parijat Sengupta, Dragica Vasileska
A central problem in the investigation of material properties involves the examination of the underlying blocks that aggregate to form macroscopic bodies. These underlying blocs own a definite arrangement that is repeated in three dimensions to give the crystal structure. We will try to explore...