
nanoHUB  Educational Tour de Force
14 Jan 2016  Online Presentations  Contributor(s): David K. Ferry
nanoHUB was originally created to bring together the computational electronics world as a place where programs and results could be efficiently shared. For that purpose, it has matured and grown to where it is a major force in the area. But, it can also be a great tool for education, an application for which we have several years of experience. ...

Quantum Point Contact published
02 Feb 2015  Tools  Contributor(s): Richard Akis, Shaikh S. Ahmed, Mohammad Zunaidur Rashid, Richard Akis
Simulates the conductance and associated wavefunctions of Quantum Point Contacts.

Using NanoHub in Undergraduate Education
25 Jun 2014  Online Presentations  Contributor(s): David K. Ferry
nanoHUB.org has now been with us for quite some time. It has developed a suite of software simulation tools that is used extensively throughout the research community around the world. Some years back, I was tasked to find a way to create a laboratory for our course on “Electronic Materials and Devices.” This course spans from introductory quantum mechanics, through materials, to how real devices work. But, creating a laboratory to accompany the lectures was not conceptually easy, as the term laboratory usually refers to a physical space with significant quantities of characterization equipment...

Explanation of Rode's Iterative Procedure
20 Jul 2010  Teaching Materials  Contributor(s): David K. Ferry, Dragica Vasileska
This set of slides describes the Rode's iterative procedure for the mobility calculation when the scattering mechanisms are neither elastic nor isotropic such as is polar optical phonon scattering.

Statistical Mechanics
20 Jul 2010  Teaching Materials  Contributor(s): Dragica Vasileska, David K. Ferry
This set of slides describes the derivation of FermiDirac, MaxwellBoltzmann and BoseEinstein statistics.

TimeDependent Perturbation Theory
20 Jul 2010  Teaching Materials  Contributor(s): David K. Ferry, Dragica Vasileska
This set of slides describes in detail the derivation of Fermi's Golden Rule.

2D Scattering Rates Calculation
20 Jul 2010  Teaching Materials  Contributor(s): Dragica Vasileska, David K. Ferry
this set of slides describes the calculation of the 2D scattering rates in Q2DEG.

Crystal Structures
08 Jun 2010  Teaching Materials  Contributor(s): David K. Ferry, Dragica Vasileska, Gerhard Klimeck
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 array of points repeated periodically in three dimensions. The set of points forming a volume that can completely fill the space of the lattice when translated by integral multiples of the lattice …

Crystal Directions and Miller Indices
08 Jun 2010  Teaching Materials  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 basis of the reciprocal lattice vectors.

Quantum Mechanics for Engineers: Podcasts
07 Jul 2008  Series  Contributor(s): Dragica Vasileska, Gerhard Klimeck, David K. Ferry
This course will introduce the students to the basic concepts and postulates of quantum mechanics. Examples will include simple systems such as particle in an infinite and finite well, 1D and 2D harmonic oscillator and tunneling. Numerous approximation techniques, such as WKB method, timedependent and timeindependent perturbation theory, variational methods and numerical solution methods of the 1D SchrÃ¶dinger equation, will be presented.
The importance of quantummechanics in todays life ...

Slides: Stationary Perturbation Theory
10 Jul 2008  Teaching Materials  Contributor(s): Dragica Vasileska, David K. Ferry
www.eas.asu.edu/~vasileskNSF

Slides: Degenerate Perturbation Theory
10 Jul 2008  Teaching Materials  Contributor(s): Dragica Vasileska, David K. Ferry
ww.eas.asu.edu/~vasileskNSF

Slides: Examples and Stark Effect
10 Jul 2008  Teaching Materials  Contributor(s): Dragica Vasileska, David K. Ferry
www.eas.asu.edu/~vasileskNSF

Slides: TimeDependent Perturbation Theory
10 Jul 2008  Teaching Materials  Contributor(s): Dragica Vasileska, David K. Ferry
www.eas.asu.edu/~vasileskNSF

Slides: Harmonic Oscillator  Brute Force Approach
09 Jul 2008  Teaching Materials  Contributor(s): Dragica Vasileska, David K. Ferry
www.eas.asu.edu/~vasileskNSF

Slides: Harmonic Oscillator  Operator Approach
09 Jul 2008  Teaching Materials  Contributor(s): Dragica Vasileska, David K. Ferry
www.eas.asu.edu/~vasileskNSF

Harmonic Oscillator: Motion in a Magnetic Field
09 Jul 2008  Teaching Materials  Contributor(s): Dragica Vasileska, David K. Ferry
www.eas.asu.edu/~vasileskNSF

Slides: WKB Approximation 1
09 Jul 2008  Teaching Materials  Contributor(s): Dragica Vasileska, David K. Ferry
www.eas.asu.edu/~vasileskNSF

Slides: WKB Approximation 2
09 Jul 2008  Teaching Materials  Contributor(s): Dragica Vasileska, David K. Ferry
www.eas.asu.edu/~vasileskNSF

Slides on Introductory Concepts in Quantum Mechanics
07 Jul 2008  Teaching Materials  Contributor(s): Dragica Vasileska, David K. Ferry, Gerhard Klimeck
particle wave duality, quantization of energy

Quantum Mechanics: Introductory Concepts
07 Jul 2008  Series  Contributor(s): Dragica Vasileska, Gerhard Klimeck, David K. Ferry
In this section of the Quantum Mechanics class we discuss the particlewave duality and the need for the quantization of energy to explain the blackbody radiation and the photoelectric effect. We provide reading material, slides and video, which in a very illustrative way, explain the most difficult concept in quantummechanics: the particlewave duality. A homework assignment, that teaches the students the quantization of the angular momentum and energy and also helps the students to better ...

Modeling Coulomb Effects in Nanoscale Devices
26 Apr 2008  Online Presentations  Contributor(s): Dragica Vasileska, Shaikh S. Ahmed, David K. Ferry
We describe the development of the modeling efforts focused towards proper description of the threshold voltage fluctuations due to the discrete impurity effects (different number and different distribution of the impurities from device to device on the same chip).NSF, ONRW. J. Gross, D. Vasileska and D. K. Ferry, "A Novel Approach for Introducing the ElectronElectron and ElectronImpurity Interactions in ParticleBased Simulations," IEEE Electron Device Lett. 20, No. 9, pp.463465 ...

Ensemble Monte Carlo Method Described
27 Apr 2008  Online Presentations  Contributor(s): Dragica Vasileska, Gerhard Klimeck, Mark Lundstrom, David K. Ferry
In this presentation we give an overview of the implementation details of the Ensemble Monte Carlo method for mobility and drift velocity calculation in arbitrary materials and arbitrary crystalographic orientations.NSFCareer, ONR

Homework Assignment: Periodic Potentials
31 Jan 2008  Teaching Materials  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?

Finite Height Quantum Well: an Exercise for Band Structure
31 Jan 2008  Teaching Materials  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 quasibound states.