
ECE 656 Lecture 34: Ensemble Effectsin NonLocal Transport
07 Dec 2009  Online Presentations  Contributor(s): Mark Lundstrom
Outline:
Review of velocity overshoot
Steadystate, spatial transients
Heterojunction launching ramps
Repeated velocity overshoot
Questions?
http://nanohub.org/resources/7960

ECE 656 Lecture 32: HighField Transport
01 Dec 2009  Online Presentations  Contributor(s): Mark Lundstrom
Outline:
Brief Introduction
Current Equation
Qualitative features of high field transport
Saturated velocity
Electron temperature model
Survey of results
Quick Summary
http://nanohub.org/resources/7887

ECE 656 Lecture 31: Monte Carlo Simulation
01 Dec 2009  Online Presentations  Contributor(s): Mark Lundstrom
Outline:
Introduction
Review of carrier scattering
Simulating carrier trajectories
Free flight
Collision
Update after collision
Putting it all together
Summary
http://nanohub.org/resources/7886

ECE 656 Lecture 30: Balance Equation Approach III
01 Dec 2009  Online Presentations  Contributor(s): Mark Lundstrom
Outline
Carrier Temperature and Heat Flux
Balance equations in 3D
Heterostructures
Summary
http://nanohub.org/resources/7885

ECE 656 Lecture 33: NonLocal Transport
25 Nov 2009  Online Presentations  Contributor(s): Mark Lundstrom
Outline:
Review of highfield transport
MC simulation of highfield transport
Velocity overshoot
Summary
http://nanohub.org/resources/7888

ECE 656 Lecture 29: Balance Equation Approach II
24 Nov 2009  Online Presentations  Contributor(s): Mark Lundstrom
Outline:
Quick review
Energy balance equation
Energy flux balance equation
Terminating the hierarchy
Summary
http://nanohub.org/resources/7883

ECE 656 Lecture 28: Balance Equation Approach I
13 Nov 2009  Online Presentations  Contributor(s): Mark Lundstrom
Outline:
Introduction
General continuity equation
Carrier continuity equation
Current equation
Summary
http://nanohub.org/resources/7833

ECE 656 Lecture 27: Scattering of Bloch Electrons
13 Nov 2009  Online Presentations  Contributor(s): Mark Lundstrom
Outline:
Umklapp processes
Overlap integrals
ADP Scattering in graphene
http://nanohub.org/resources/7827

ECE 656 Lecture 26: Mobility in 3D, 2D, and 1D
13 Nov 2009  Online Presentations  Contributor(s): Mark Lundstrom
The goal in this lecture is to examine one scattering
mechanism (ADP scattering) in 3D, 2D, and 1D to see
how the scattering rate changes with dimensionality. Then
we’ll compare mobilities...
http://nanohub.org/resources/7820

ECE 656 Lecture 25: Phonon Scattering III
13 Nov 2009  Online Presentations  Contributor(s): Mark Lundstrom
Outline:
Review
POP and IV scattering
Scattering in common semiconductors
Electronelectron scattering
Summary
http://nanohub.org/resources/7813

ECE 656 Lecture 24: Phonon Scattering II
13 Nov 2009  Online Presentations  Contributor(s): Mark Lundstrom
Outline:
Review
Energymomentum conservation
Mathematical formulation
Example
Summary
http://nanohub.org/resources/7806

ECE 656 Lecture 23: Phonon Scattering I
10 Nov 2009  Online Presentations  Contributor(s): Mark Lundstrom
Outline:
About phonons
Electronphonon coupling
Energymomentum conservation
Summary
http://nanohub.org/resources/7780

ECE 656 Lecture 16: Solving the BTE: Magnetic Fields
09 Nov 2009  Online Presentations  Contributor(s): Mark Lundstrom
Outline:
General solution
Current equation
Coupled current equations
Example
Summary
http://nanohub.org/resources/7508

ECE 656 Lecture 22: Charged Impurity Scattering
06 Nov 2009  Online Presentations  Contributor(s): Mark Lundstrom
Online:
Review
Screening
BrooksHerring approach
ConwellWeisskopf approach
Discussion
Summary / Questions
http://nanohub.org/resources/7764

ECE 656 Lecture 18: Strong Magnetic Fields
05 Nov 2009  Online Presentations  Contributor(s): Mark Lundstrom
Outline
Magnetoconductivity tensor
Resistivity tensor
Strong Bfields: Landau levels
ShubnikovDeHaas Oscillations and QHE
Summary
http://nanohub.org/resources/7693

ECE 656 Lecture 19: Characteristic Times
05 Nov 2009  Online Presentations  Contributor(s): Mark Lundstrom
Outline:
Characteristic times
Relaxation Time Approximation and τr
http://nanohub.org/resources/7741

ECE 656 Lecture 20: Transmission and Backscattering
05 Nov 2009  Online Presentations  Contributor(s): Mark Lundstrom
Outline:
Transmission and mfp
MFP and carrrier scattering
Extracting meanfreepaths from experiments
http://nanohub.org/resources/7748

ECE 656 Lecture 21: Scattering and Fermi's Golden Rule
05 Nov 2009  Online Presentations  Contributor(s): Mark Lundstrom
Outline:
Fermi’s Golden Rule
Example: static potential
Example: oscillating potential
Discussion
Summary
http://nanohub.org/resources/7755

ECE 656 Lecture 14: Solving the BTE: 1D/RTA
07 Oct 2009  Online Presentations  Contributor(s): Mark Lundstrom
Outline:
The RTA
Solving the BTE: drift
Solving the BTE: diffusion
Energydependent scattering time
Relation to Landauer
Discussion
Summary
http://nanohub.org/resources/7506

ECE 656 Lecture 11: Discussion
07 Oct 2009  Online Presentations  Contributor(s): Mark Lundstrom
Outline:
Ptype conductors and thermoelectrics
ZT figure of merit
Maximizing the “power factor”
TE parameters for nondegenerate semiconductor
http://nanohub.org/resources/7395