Low B Field Magneto-Phonon Resonances in Single-Layer and Bilayer Graphene

Abstract

Many-body effects resulting from strong electron-electron and electron-phonon interactions play a significant role in graphene physics. We report on their manifestation in low B field magneto-phonon resonances in high quality exfoliated single-layer and bilayer graphene encapsulated in hexagonal boron nitride. These resonances allow us to extract characteristic effective Fermi velocities, as high as $1.20\times 10^6$ m/s, for the observed "dressed" Landau level transitions, as well as the broadening of the resonances, which increases with Landau level index.

References in corpus (15)

• The Raman Fingerprint of Graphene
• Electric Field Effect Tuning of Electron-Phonon Coupling in Graphene
• Infrared spectroscopy of Landau levels in graphene
• Raman imaging of doping domains in graphene on SiO2
• Nanosecond spin lifetimes in single- and few-layer graphene-hBN heterostructures at room temperature
• Quantum Classical Correspondence for a non-Hermitian Bose-Hubbard Dimer
• Excitations from Filled Landau Levels in Graphene
• Splitting of the Raman $2D$ band of graphene subjected to strain
• Filling-Factor-Dependent Magnetophonon Resonance in Graphene
• Non-Hermitian degeneracy of two unbound states
• Probing electronic excitations in mono- to pentalayer graphene by micro-magneto-Raman spectroscopy
• Circular dichroism of magneto-phonon resonance in doped graphene
• Role of electronic excitations in magneto-Raman spectra of graphene
• Impact of thermal annealing on graphene devices encapsulated in hexagonal boron nitride
• Probing the band structure of quadri-layer graphene with magneto-phonon resonance

Cited by in corpus (15)

• Strain Assessment in Graphene Through the Raman 2D' Mode
• Uniformity of the pseudomagnetic field in strained graphene
• Impact of Many-Body Effects on Landau Levels in Graphene
• Spatial control of laser-induced doping profiles in graphene on hexagonal boron nitride
• Line Shape of the Raman 2D Peak of Graphene in Van Der Waals Heterostructures
• Raman scattering of graphene based systems in high magnetic fields
• Electrical Control over Phonon Polarization in Strained Graphene
• Magneto-optical response of graphene: probing substrate interactions
• Theory of resonant Raman scattering: Toward a comprehensive \textit{ab initio} description
• Spin and charge transport in graphene-based spin transport devices with Co/MgO spin injection and spin detection electrodes
• Interplay between nanometer-scale strain variations and externally applied strain in graphene
• Probing electronic lifetimes and phonon anharmonicities in high-quality chemical vapor deposited graphene by magneto-Raman spectroscopy
• Damping of Landau levels in neutral graphene at low magnetic fields: A phonon Raman scattering study
• Many-body effects in suspended graphene probed through magneto-phonon resonances
• Landau level spectroscopy in current solid state physics