All Categories (21-27 of 27)

1. Periodic Potentials and the Kronig-Penney Model

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   Teaching Materials | 01 Jul 2008 | Contributor(s):: Dragica Vasileska

   This material describes the derivation of the Kronig-Penney model for delta-function periodic potentials.

2. Periodic Potentials and Bandstructure: an Exercise

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   Teaching Materials | 02 Jul 2008 | Contributor(s):: Dragica Vasileska, Gerhard Klimeck

   This exercise teaches the students that in the case of strong coupling between the neighboring wells in square and Coulomb periodic potential wells electrons start to behave as free electrons and the gaps that open at the Brillouin zone boundaries become smaller and smaller (thus recovering the...

3. Computational Nanoscience, Lecture 4: Geometry Optimization and Seeing What You're Doing

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   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...

4. Homework Assignment: Periodic Potentials

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   Teaching Materials | 31 Jan 2008 | Contributor(s):: David K. Ferry

   Using the Periodic Potential Lab on nanoHUB determine the allowed bands for an energy barrier of 5 eV, a periodicity W = 0.5nm, and a barrier thickness of 0.1nm. How do these bands change if the barrier thickness is changed to 0.2 nm?

5. Semiconductor Device Education Material

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   Teaching Materials | 28 Jan 2008 | Contributor(s):: Gerhard Klimeck

   This page has moved to "a Wiki page format" When we hear the words, semiconductor device, we may think first of the transistors in PCs or video game consoles, but transistors are the basic component in all of the electronic devices we use in our daily lives. Electronic systems are...

6. Periodic Potential Lab

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   Tools | 19 Jan 2008 | Contributor(s):: Abhijeet Paul, Junzhe Geng, Gerhard Klimeck

   Solve the time independent schrodinger eqn. for arbitrary periodic potentials

7. 

   SungGeun Kim

   SungGeun recieved bachelor's degree from Ajou University in 2001 in electrical engineering and got master's degree at GIST(Gwangju Institute of Science and Technology) in 2005. He studied on the...

   https://nanohub.org/members/22824