{ "id": "1406.4226", "version": "v1", "published": "2014-06-17T03:26:16.000Z", "updated": "2014-06-17T03:26:16.000Z", "title": "Breit-Wigner-Fano lineshapes in Raman spectra of graphene", "authors": [ "Eddwi H. Hasdeo", "Ahmad R. T. Nugraha", "Mildred S. Dresselhaus", "Riichiro Saito" ], "comment": "15 pages, 4 figures", "categories": [ "cond-mat.mes-hall" ], "abstract": "Excitation of electron-hole pairs in the vicinity of the Dirac cone by the Coulomb interaction gives rise to an asymmetric Breit-Wigner-Fano lineshape in the phonon Raman spectra in graphene. This asymmetric lineshape appears due to the interference effect between the phonon spectra and the electron-hole pair excitation spectra. The calculated Breit-Wigner-Fano asymmetric factor 1/qBWF as a function of the Fermi energy shows a V-shaped curve with a minimum value at the charge neutrality point and gives good agreement with the experimental result.", "revisions": [ { "version": "v1", "updated": "2014-06-17T03:26:16.000Z" } ], "analyses": { "subjects": [ "78.67.Wj", "73.22.Pr", "42.65.Dr", "03.65.Nk" ], "keywords": [ "electron-hole pair excitation spectra", "charge neutrality point", "asymmetric lineshape appears", "phonon raman spectra", "calculated breit-wigner-fano asymmetric factor" ], "tags": [ "journal article" ], "publication": { "doi": "10.1103/PhysRevB.90.245140", "journal": "Physical Review B", "year": 2014, "month": "Dec", "volume": 90, "number": 24, "pages": 245140 }, "note": { "typesetting": "TeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014PhRvB..90x5140H" } } }