
Research in Xu’s Group
07 Aug 2019   Contributor(s):: Xianfan Xu

Bandstructure Effects in Nano Devices With NEMO: from Basic Physics to Real Devices and to Global Impact on nanoHUB.org
08 Mar 2019   Contributor(s):: Gerhard Klimeck
This presentation will intuitively describe how bandstructure is modified at the nanometer scale and what some of the consequences are on the device performance.

Frequency change Vs Temperature in THz region
Closed  Responses: 0
Dear all,
Wondering what does change in the frequency with respect to temperature of phonon modes in THz region of Raman spectra indicate ?. Does it indicate concerted movement of...
https://nanohub.org/answers/question/1986

Spectral analysis of nonequilibrium molecular dynamics
28 Jun 2017   Contributor(s):: Tianli Feng, Yang Zhong, Divya Chalise, Xiulin Ruan
Extract the phonon modal temperature and heat flux from nonequilibrium molecular dynamics

Spectral Phonon Relaxation Time Calculation Tool Based on Molecular Dynamics
27 Jul 2017   Contributor(s):: Divya Chalise, Tianli Feng, Xiulin Ruan
Thermal conductivity is an important material property which affects the performance of a wide range of devices from thermoelectrics to nanoelectronics. Information about phonon vibration modes and phonon relaxation time gives significant insight into understanding and engineering...

Fundamentals of Phonon Transport Modeling L1: Introduction
03 Jan 2017   Contributor(s):: Alan McGaughey, Xiulin Ruan
Part of the 2016 IMECE Tutorial: Fundamentals of Phonon Transport Modeling: Formulation, Implementation, and Applications.

Fundamentals of Phonon Transport Modeling L2: MD Simulation, Green Kubo, Direct Method
03 Jan 2017   Contributor(s):: Xiulin Ruan, Alan McGaughey
Part of the 2016 IMECE Tutorial: Fundamentals of Phonon Transport Modeling: Formulation, Implementation, and Applications.

Fundamentals of Phonon Transport Modeling L3: Harmonic Lattice Dynamics, Spectral Methods
03 Jan 2017   Contributor(s):: Xiulin Ruan, Alan McGaughey
Part of the 2016 IMECE Tutorial: Fundamentals of Phonon Transport Modeling: Formulation, Implementation, and Applications.

Fundamentals of Phonon Transport Modeling L4: Anharmonic Lattice dynamics, First Principles
03 Jan 2017   Contributor(s):: Alan McGaughey, Xiulin Ruan
Part of the 2016 IMECE Tutorial: Fundamentals of Phonon Transport Modeling: Formulation, Implementation, and Applications.

Fundamentals of Phonon Transport Modeling L5: PhononBoundary and PhononDefect Scattering
03 Jan 2017   Contributor(s):: Alan McGaughey, Xiulin Ruan
Part of the 2016 IMECE Tutorial: Fundamentals of Phonon Transport Modeling: Formulation, Implementation, and Applications.

Fundamentals of Phonon Transport Modeling L6: PhononElectron Coupling and Nonequilibrium
03 Jan 2017   Contributor(s):: Xiulin Ruan, Alan McGaughey
Part of the 2016 IMECE Tutorial: Fundamentals of Phonon Transport Modeling: Formulation, Implementation, and Applications.

Low Temperature Enhancement of the Thermoelectric Seebeck Coefficient in Semiconductor Nanoribbons
21 Oct 2016   Contributor(s):: Kommini Adithya, Zlatan Aksamija
IWCE 2015 Presentation. We propose a novel approach to achieving a narrow windowshaped TDF through a combination of a steplike 2dimensional densityofstates (DOS) and inelastic optical phonon scattering. A shift in the onset of scattering with respect to the steplike DOS creates a TDF which...

Practice Your Scales!
Thermal and Energy Nanomaterials for Fast Processes
06 Aug 2016   Contributor(s):: Timothy S Fisher

PHYS 620 Lecture 8: Phonons
13 Feb 2013   Contributor(s):: Roberto Merlin

Pablo MartÃn Scuracchio
https://nanohub.org/members/77945

ECE 656 Lecture 26: Phonon Scattering III
07 Nov 2011   Contributor(s):: Mark Lundstrom
Outline:ReviewExamplePOP and IV scatteringScattering in common semiconductorsElectronelectron scatteringSummary

ECE 656 Lecture 25: Phonon Scattering II
07 Nov 2011   Contributor(s):: Mark Lundstrom
Outline:Reviewphononselectronphonon couplingEnergymomentum conservationMathematical formulationExampleSummary

ECE 656 Lecture 24: Phonon Scattering I
07 Nov 2011   Contributor(s):: Mark Lundstrom
This lecture should be viewed in the 2009 teaching ECE 656 Lecture 23: Phonon Scattering I

1D Chain Dispersions
01 Sep 2011   Contributor(s):: Nicholas Roberts, Greg Walker
1D Chain of atoms, bases and layers to produce phonon dispersion

Thermal Transport Across Interfaces
19 Aug 2011   Contributor(s):: Timothy S Fisher
These lectures provide a theoretical development of the transport ofthermal energy by conduction in nanomaterials, in which materialinterfaces typically dominate transport. The physical nature of energytransport by two carriers: electrons and phononswill be explored.