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@ARTICLE{Venanzi:1025621,
author = {Venanzi, Tommaso and Graziotto, Lorenzo and Macheda,
Francesco and Sotgiu, Simone and Ouaj, Taoufiq and Stellino,
Elena and Fasolato, Claudia and Postorino, Paolo and
Mišeikis, Vaidotas and Metzelaars, Marvin and Kögerler,
Paul and Beschoten, Bernd and Coletti, Camilla and Roddaro,
Stefano and Calandra, Matteo and Ortolani, Michele and
Stampfer, Christoph and Mauri, Francesco and Baldassarre,
Leonetta},
title = {{P}robing {E}nhanced {E}lectron-{P}honon {C}oupling in
{G}raphene by {I}nfrared {R}esonance {R}aman {S}pectroscopy},
journal = {Physical review letters},
volume = {130},
number = {25},
issn = {0031-9007},
address = {College Park, Md.},
publisher = {APS},
reportid = {FZJ-2024-03010},
pages = {256901},
year = {2023},
abstract = {We report on resonance Raman spectroscopy measurements with
excitation photon energy down to 1.16 eV on graphene, to
study how low-energy carriers interact with lattice
vibrations. Thanks to the excitation energy close to the
Dirac point at K, we unveil a giant increase of the
intensity ratio between the double-resonant 2D and 2D′
peaks with respect to that measured in graphite. Comparing
with fully ab initio theoretical calculations, we conclude
that the observation is explained by an enhanced,
momentum-dependent coupling between electrons and Brillouin
zone-boundary optical phonons. This finding applies to
two-dimensional Dirac systems and has important consequences
for the modeling of transport in graphene devices operating
at room temperature.},
cin = {PGI-9 / PGI-11 / JARA-FIT},
ddc = {530},
cid = {I:(DE-Juel1)PGI-9-20110106 / I:(DE-Juel1)PGI-11-20170113 /
$I:(DE-82)080009_20140620$},
pnm = {5222 - Exploratory Qubits (POF4-522) / DFG project
390534769 - EXC 2004: Materie und Licht für
Quanteninformation (ML4Q) (390534769) / GrapheneCore3 -
Graphene Flagship Core Project 3 (881603)},
pid = {G:(DE-HGF)POF4-5222 / G:(GEPRIS)390534769 /
G:(EU-Grant)881603},
typ = {PUB:(DE-HGF)16},
pubmed = {37418733},
UT = {WOS:001026290400003},
doi = {10.1103/PhysRevLett.130.256901},
url = {https://juser.fz-juelich.de/record/1025621},
}