Teaching Materials (1-9 of 9)

1. Computational Nanoscience, Lecture 26: Life Beyond DFT -- Computational Methods for Electron Correlations, Excitations, and Tunneling Transport

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   16 May 2008 | | Contributor(s):: Jeffrey B. Neaton

   In this lecture, we provide a brief introduction to "beyond DFT" methods for studying excited state properties, optical properties, and transport properties. We discuss how the GW approximation to the self-energy corrects the quasiparticle excitations energies predicted by Kohn-Sham DFT. For...

2. Finite Height Quantum Well: an Exercise for Band Structure

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

   Use the Resonant Tunneling Diodes simulation tool on nanoHUB to explore the effects of finite height quantum wells. Looking at a 2 barrier device, 300 K, no bias, other standard variables, and 3 nm thick barriers and a 7 nm quantum well, determine the energies of the two lowest quasi-bound states.

3. K-12: Introduction to Quantum Wells

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   24 Nov 2008 | | Contributor(s):: David Beck, Mark M Budnik

   A lesson plan for a 20-30 minute exercise for 4th and 5th grade Gifted and Talented students to explore the concept of quantum wells. The objectives of the lesson are:* The students will be able to understand the basic functions and concepts of quantum wells and tunneling.* Students will be able...

4. Modeling Sanning Probe Microscopes (SPM)

   06 Jan 2020 | | Contributor(s):: Woodward Maxwell, NNCI Nano

   The Modeling Scanning Probe Microscopes (SPM) lab is designed to show students the principles of how a Scanning Probe Microscope works and how mapping on a smaller scale provides a more detailed view of a surface. Students will use a conductivity apparatus to model the mapping behavior of an...

5. Quantum Tunneling Exercise

   16 Jun 2010 | | Contributor(s):: Gerhard Klimeck, Parijat Sengupta, Dragica Vasileska

   Exercise BackgroundTunneling is fully quantum-mechanical effect that does not have classical analog. Tunneling has revolutionized surface science by its utilization in scanning tunneling microscopes. In some device applications tunneling is required for the operation of the device (Resonant...

6. Reading Material: Tunneling

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   08 Jul 2008 | | Contributor(s):: Dragica Vasileska

   www.eas.asu.edu/~vasileskNSF

7. Slides: WKB Approximation Applications

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   09 Jul 2008 | | Contributor(s):: Dragica Vasileska, Gerhard Klimeck

   www.eas.asu.edu/~vasileskNSF

8. Tunneling

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   29 Jul 2011 | | Contributor(s):: Dragica Vasileska, Gerhard Klimeck

   This set of slides describes the quantum-mechanical process for tunneling and how it is accounted for in modeling semiconductor devices. We explain WKB approximation, transfer matrix approach and the Tsu-Esaki formula for the calculation of the current.

9. Tunneling Through Triangular Barrier: an Exercise for PCPBT

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   23 Jul 2008 | | Contributor(s):: Dragica Vasileska, Gerhard Klimeck

   This exercise teaches the users that a very good result can be obtained when the triangular barrier is approximated with 11 segment piece-wise constant potential barrier steps. www.eas.asu.edu/~vasilesk NSF