Effects of electron-electron interactions on the electronic Raman scattering of graphite in high magnetic fields

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dc.citation.articleNumber121402(R)en_US
dc.citation.issueNumber12en_US
dc.citation.journalTitlePhysical Review Ben_US
dc.citation.volumeNumber89en_US
dc.contributor.authorMa, Y.en_US
dc.contributor.authorKim, Y.en_US
dc.contributor.authorKalugin, N.G.en_US
dc.contributor.authorLombardo, A.en_US
dc.contributor.authorFerrari, A.C.en_US
dc.contributor.authorKono, J.en_US
dc.contributor.authorImambekov, A.en_US
dc.contributor.authorSmirnov, D.en_US
dc.date.accessioned2017-06-06T19:07:23Zen_US
dc.date.available2017-06-06T19:07:23Zen_US
dc.date.issued2014en_US
dc.description.abstractWe report the observation of strongly temperature (T)-dependent spectral lines in electronic Raman-scattering spectra of graphite in a high magnetic field up to 45 T applied along the c axis. The magnetic field quantizes the in-plane motion, while the out-of-plane motion remains free, effectively reducing the system dimension from 3 to 1. Optically created electron-hole pairs interact with, or shake up, the one-dimensional Fermi sea in the lowest Landau subbands. Based on the Tomonaga-Luttinger liquid theory, we show that interaction effects modify the spectral line shape from (ω−Δ)−1/2 to (ω−Δ)2α−1/2 at T = 0. At finite T, we predict a thermal broadening factor that increases linearly with T. Our model reproduces the observed T-dependent line shape, determining the electron-electron interaction parameter α to be ∼0.05 at 40 T.en_US
dc.identifier.citationMa, Y., Kim, Y., Kalugin, N.G., et al.. "Effects of electron-electron interactions on the electronic Raman scattering of graphite in high magnetic fields." <i>Physical Review B,</i> 89, no. 12 (2014) American Physical Society: https://doi.org/10.1103/PhysRevB.89.121402.en_US
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.89.121402en_US
dc.identifier.urihttps://hdl.handle.net/1911/94814en_US
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.titleEffects of electron-electron interactions on the electronic Raman scattering of graphite in high magnetic fieldsen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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