Dynamical polarization and plasmons in noncentrosymmetric metals
Sonu Verma,
Arijit Kundu,
Tarun Kanti Ghosh
Abstract:We study the dynamical polarization function and plasmon modes for spin-orbit coupled noncentrosymmetric metals such as Li2(Pd1−xPtx)3B. These systems have different Fermi surface topology for Fermi energies above and below the spin degenerate point which is also known as the band touching point (BTP). We calculate the exact dynamical polarization function numerically and also provide its analytical expression in the long wavelength limit. We obtain the plasmon dispersion within the framework of random phase a… Show more
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