Tags: phonons

Description

In physics, a phonon is a quasiparticle characterized by the quantization of the modes of lattice vibrations of periodic, elastic crystal structures of solids. The study of phonons is an important part of solid state physics because phonons play a major role in many of the physical properties of solids, including a material's thermal and electrical conductivities.

Learn more about quantum dots from the many resources on this site, listed below. More information on Phonons can be found here.

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  1. A Condensed Matter Physics class and a Course-Based Undergraduate Research Experience (CURE) with the MIT Atomic-Scale Modeling Toolkit

    07 Nov 2022 | | Contributor(s):: David Strubbe

    In this presentation, Dr. Strubbe will discuss how he has been using the MIT Atomic-Scale Modeling Toolkit as a part of his undergraduate and graduate class on condensed matter physics. In discussion sections, simulations are performed to illustrate concepts like covalent bonding,...

  2. Hydrodynamic Phenomena in Thermal Transport

    01 Sep 2022 | | Contributor(s):: F. Xavier Alvarez

    The talk will cover some of the most recent evidences in the theoretical and experimental research on thermal transport and we will analyze them in the framework of the Kinetic/Collective model (KCM), developed to give a more generalized framework to describe thermal experiments.

  3. Thermal Energy at the Nanoscale

    31 Jan 2022 | | Contributor(s):: Timothy S Fisher

    These lecture notes provide a detailed treatment of the thermal energy storage and transport by conduction in natural and fabricated structures.

  4. Fusing Light With Heat: Polaritons for Nanoscale Thermal Transport & Sensing

    07 Oct 2021 | | Contributor(s):: Thomas Beechem

    Light exhibits a wave nature.  Phonons do too.  Within the infrared portion of the spectrum, these differing “waves” can interact to form hybrid energy carriers called polaritons.  Polaritons, in turn, provide fundamental advantages for optical functionality and...

  5. Research in Xu’s Group

    07 Aug 2019 | | Contributor(s):: Xianfan Xu

  6. 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.

  7. 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

  8. Spectral analysis of non-equilibrium molecular dynamics

    28 Jun 2017 | | Contributor(s):: Tianli Feng, Yang Zhong, Divya Chalise, Xiulin Ruan

    Extract the phonon modal temperature and heat flux from non-equilibrium molecular dynamics

  9. 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...

  10. 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.

  11. 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.

  12. 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.

  13. 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.

  14. Fundamentals of Phonon Transport Modeling L5: Phonon-Boundary and Phonon-Defect 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.

  15. Fundamentals of Phonon Transport Modeling L6: Phonon-Electron Coupling and Non-equilibrium

    03 Jan 2017 | | Contributor(s):: Xiulin Ruan, Alan McGaughey

    Part of the 2016 IMECE Tutorial: Fundamentals of Phonon Transport Modeling: Formulation, Implementation, and Applications.

  16. 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 window-shaped TDF through a combination of a step-like 2-dimensional density-of-states (DOS) and inelastic optical phonon scattering. A shift in the onset of scattering with respect to the step-like DOS creates a TDF which...

  17. Heat Under the Microscope: Uncovering the Microscopic Processes that Govern Thermal Transport

    11 Jul 2016 | | Contributor(s):: Austin Minnich

    In this talk, I will describe our efforts to uncover the microscopic processes that govern thermal transport by phonons. In particular, I will describe how our advances in computation and experiment have enabled the first direct measurements of thermal phonon transmission coefficients at solid...

  18. Practice Your Scales! Thermal and Energy Nanomaterials for Fast Processes

    06 Aug 2016 | | Contributor(s):: Timothy S Fisher

  19. E304 L5.2.2: Nanomechanics - Phonons

    29 Mar 2016 | | Contributor(s):: Elena Nicolescu Veety, ASSIST ERC

  20. Can SeqQuest perform phonon calculations?

    Closed | Responses: 1

    I was wondering if SeqQuest can do phonon calculations? If not, then is it being planned?

    Thanks

    amit

     

    https://nanohub.org/answers/question/1711