beta: Coupling Term

In tjconstant/grapheneSPP: Graphene SPP Dispersion Calculation

Description

The coupling term between uncoupled conductive sheet and phonons

Usage

beta(q, omega, d = 3.5e-10, eps_inf, omega_TO, omega_LO)

Arguments

q	wavevector [m^-1]
omega	angular frequency [s^-1]
d	distance between graphene and substrate [m]
eps_inf	permittivity at infinity / high frequency dielectric constant
omega_TO	vector of frequencies of transverse optical phonons [cm^-1]
omega_LO	vector of frequencies of longitudinal optical phonons [cm^-1]

Value

returns the coupling term beta

References

[1] Wang, S Q. & Mahan G. D. Phys. Rev. B (1972) 6 4517

[2] Hwang, E. H., Sensarma, R. & Das Sarma, S. Phys. Rev. B (2010), 82, 195406

tjconstant/grapheneSPP documentation built on May 31, 2019, 3:38 p.m.