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dc.contributor.authorMa, Y.
Kim, Y.
Kalugin, N.G.
Lombardo, A.
Ferrari, A.C.
Kono, J.
Imambekov, A.
Smirnov, D.
dc.date.accessioned 2017-06-06T19:07:23Z
dc.date.available 2017-06-06T19:07:23Z
dc.date.issued 2014
dc.identifier.citation Ma, Y., Kim, Y., Kalugin, N.G., et al.. "Effects of electron-electron interactions on the electronic Raman scattering of graphite in high magnetic fields." Physical Review B, 89, no. 12 (2014) American Physical Society: https://doi.org/10.1103/PhysRevB.89.121402.
dc.identifier.urihttps://hdl.handle.net/1911/94814
dc.description.abstract We 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.
dc.language.iso eng
dc.publisher American Physical Society
dc.rights Article 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.
dc.title Effects of electron-electron interactions on the electronic Raman scattering of graphite in high magnetic fields
dc.type Journal article
dc.citation.journalTitle Physical Review B
dc.citation.volumeNumber 89
dc.citation.issueNumber 12
dc.type.dcmi Text
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.89.121402
dc.type.publication publisher version
dc.citation.articleNumber 121402(R)


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