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In solid-state physics, the electronic band structure of a solid describes ranges of energy that an electron is "forbidden" or "allowed" to have. It is a function of the diffraction of the quantum mechanical electron waves in the periodic crystal lattice with a specific crystal system and Bravais lattice. The band structure of a material determines several characteristics, in particular its electronic and optical properties. More information on Band structure can be found here.
Surprises on the nanoscale: Plasmonic waves that travel backward and spin birefringence without magnetic fields
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08 Jan 2007 |
As nanonphotonics and nanoelectronics are pushed down towards the molecular scale, interesting effects emerge. We discuss how birefringence (different propagation of two polarizations) is manifested and could be useful in the future for two systems: coherent plasmonic transport of near-field...
The Novel Nanostructures of Carbon
28 Feb 2008 | | Contributor(s):: Gene Dresselhaus
A brief review will be given of the physical underpinnings of carbon nanostructures that were developed over the past 60 years, starting with the electronic structure and physical properties of graphene and graphite, and then moving to graphite intercalation compounds which contained the first...
27 Jul 2010 | | Contributor(s):: Mark Lundstrom
his talk is an undergraduate level introduction to the field. After a brief discussion of applications, the physics of the Peltier effect is described, and the Figure of Merit (FOM), ZT, which controls the efficiency of a thermoelectric refrigerator or electric power generator, is discussed. The...
Thermoelectric Power Factor Calculator for Nanocrystalline Composites
18 Oct 2008 | | Contributor(s):: Terence Musho, Greg Walker
Quantum Simulation of the Seebeck Coefficient and Electrical Conductivity in a 2D Nanocrystalline Composite Structure using Non-Equilibrium Green's Functions
Thermoelectric Power Factor Calculator for Superlattices
Quantum Simulation of the Seebeck Coefficient and Electrical Conductivity in 1D Superlattice Structures using Non-Equilibrium Green's Functions
Tight-Binding Band Structure Calculation Method
02 Jun 2010 | | Contributor(s):: Dragica Vasileska, Gerhard Klimeck
This set of slides describes on simple example of a 1D lattice, the basic idea behind the Tight-Binding Method for band structure calculation.
Tillmann Christoph Kubis
Tutorial 4: Far-From-Equilibrium Quantum Transport
23 Mar 2011 | | Contributor(s):: Gerhard Klimeck
These lectures focus on the application of the theories using the nanoelectronic modeling tools NEMO 1- D, NEMO 3-D, and OMEN to realistically extended devices. Topics to be covered are realistic resonant tunneling diodes, quantum dots, nanowires, and Ultra-Thin-Body Transistors.
Tutorial 4a: High Bias Quantum Transport in Resonant Tunneling Diodes
Outline:Resonant Tunneling Diodes - NEMO1D: Motivation / History / Key InsightsOpen 1D Systems: Transmission through Double Barrier Structures - Resonant TunnelingIntroduction to RTDs: Linear Potential DropIntroduction to RTDs: Realistic Doping ProfilesIntroduction to RTDs: Relaxation Scattering...
Tutorial 4b: Introduction to the NEMO3D Tool - Electronic Structure and Transport in 3D
Electronic Structure and Transport in 3D - Quantum Dots, Nanowires and Ultra-Thin Body Transistors
Tutorial 4c: Formation of Bandstructure in Finite Superlattices (Exercise Session)
How does bandstructure occur? How large does a repeated system have to be? How does a finite superlattice compare to an infinite superlattice?
Tutorial 4d: Formation of Bandstructure in Finite Superlattices (Exercise Demo)
Demonstration of thePiece-Wise Constant Potential Barriers Tool.
Tutorial on Semi-empirical Band Structure Methods
06 Jul 2008 | | Contributor(s):: Dragica Vasileska
This tutorial explains in details the Empirical Pseudopotential Method for the electronic structure calculation, the tight-binding method and the k.p method. For more details on the Empirical Pseudopotential Method listen to the following presentation:Empirical Pseudopotential Method Described...