Main content

Identifying signatures of the electron-phonon interaction in 2D and 3D Dirac-like materials

Show full item record

Title: Identifying signatures of the electron-phonon interaction in 2D and 3D Dirac-like materials
Author: Pavlovic, Boris
Department: Department of Physics
Program: Physics
Advisor: Nicol, Elisabeth + "J."
Abstract: Recently, interest has been directed toward identifying and characterizing materials with 3D Dirac-like energy dispersions. Using a 3D version of the 2D Dirac-Weyl Hamiltonian, which has been used to describe the low energy physics of the 2D Dirac fermions found in graphene, we present our theoretical results for the electron self-energy of the 3D Dirac cone with the inclusion of an electron-phonon interaction (EPI). Employing a Holstein model for the EPI and allowing for varying chemical potential, bandwidth, and electron-phonon mass renormalization, we show how the self-energy modifies the electronic density of states and in turn the optical conductivity. The results for 3D are contrasted with the 2D case, as previously explored for graphene. Our results identify signatures of the EPI which can be used as a tool to understand experimental results probing the optical response and electronic properties of 3D analogues to the 2D Dirac fermions in graphene.
Date: 2015-08
Terms of Use: All items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.

Files in this item

Files Size Format View Description
Boris_Pavlovic_201508_Msc.pdf 6.062Mb PDF View/Open Corrected Thesis, Forms submitted

This item appears in the following Collection(s)

Show full item record

The library is committed to ensuring that members of our user community with disabilities have equal access to our services and resources and that their dignity and independence is always respected. If you encounter a barrier and/or need an alternate format, please fill out our Library Print and Multimedia Alternate-Format Request Form. Contact us if you’d like to provide feedback:  (email address)