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Title: Signatures of electronic excitations in the Raman spectra of graphene materials
Author: Garcia-Ruiz, Aitor
ISNI:       0000 0004 9353 430X
Awarding Body: University of Bath
Current Institution: University of Bath
Date of Award: 2020
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In this thesis, we present the tight binding method to describe electronic properties of graphene. We begin with a theoretical description of electronic Raman scattering (ERS) in graphene, under the framework of time-dependent perturbation theory. Our original work is presented in chapters 4, 5 and 6. In each chapter, we model the Raman spectra of graphene-based systems of special interest in carbon research: superconducting graphene, graphite and twisted bilayer graphene. Our findings underpin that purely electronic excitations in Raman spectra generate distinctive features that allows us to characterise and study these materials. In particular, Raman spectra give us insights into the position of van Hove singularities, the size of gaps or the flatness of bands. At the end of each chapter, we provide additional information about the current experimental status.
Supervisor: Mucha-Kruczynski, Marcin ; Clark, Stephen Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Graphene ; Raman ; Superconductivity ; graphite ; twisted bilayer graphene