Encapsulated low-energy graphene plasmons under strain and the effect of plasmon-phonon coupling
ORAL
Abstract
The combined effect due to strain, encapsulation and phonon scattering on the plasmon excitation
spectrum of a graphene layer is investigated. The calculations are based on the random-phase
approximation (RPA) for the surface response function which yields the plasmon dispersion equation
that is applicable in the presence or absence of an applied uniaxial strain. We present results showing
the dependence of the frequency of the charge density oscillations on the strain modulus and direction
of the wave vector in the Brillouin zone.
spectrum of a graphene layer is investigated. The calculations are based on the random-phase
approximation (RPA) for the surface response function which yields the plasmon dispersion equation
that is applicable in the presence or absence of an applied uniaxial strain. We present results showing
the dependence of the frequency of the charge density oscillations on the strain modulus and direction
of the wave vector in the Brillouin zone.
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Presenters
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Dipendra Dahal
CUNY-Graduate Ctr, Physics and Astronomy, CUNY-Graduate Ctr
Authors
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Dipendra Dahal
CUNY-Graduate Ctr, Physics and Astronomy, CUNY-Graduate Ctr
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Godfrey Gumbs
Physics and Astronomy, Hunter college, Hunter college, CUNY, Physics and astronomy, Hunter College-City University of New York, Physics and Astronomy, Hunter College, CUNY, Department of Physics & Astronomy, Hunter College of CUNY, Hunter College, CUNY, Department of Physics and Astronomy, Hunter College of the City University of New York, Department of Physics and Astronomy, Hunter College, City University of New York