Resonant Raman scattering by elementary electronic excitations in semiconductor structures

Abstract

We explain quantitatively why resonant Raman scattering spectroscopy, an extensively used experimental tool in studying elementary electronic excitations in doped low dimensional semiconductor nanostructures, always produces an observable peak at the so-called "single particle" excitation although the standard theory predicts that there should be no such single particle peak in the Raman spectra. We have thus resolved an experimental puzzle which dates back more than twenty-five years.

4 pages, 5 figures included, to appear in Phys. Rev. Lett. on July 26

Cited by in corpus (22)

• Inelastic Light Scattering From Correlated Electrons
• Ab Initio Investigation of Collective Charge Excitations in MgB_2
• Spin polarized two-dimensional electron gas embedded in semimagnetic quantum well : ground state, spin responses, spin excitations, Raman spectrum
• Two-Roton Bound State in the Fractional Quantum Hall Effect
• Where is the Luttinger liquid in one dimensional semiconductor quantum wire structures?
• Graphene-based modulation-doped superlattice structures
• Resonant Raman Scattering by Charge Density and Single Particle Excitations in Semiconductor Nanostructures: A Generalized Interband-Resonant Random-Phase-Approximation Theory
• Measuring the spin polarization and Zeeman energy of a spin-polarized electron gas: Comparison between Raman scattering and photoluminescence
• Symmetries in the collective excitations of an electron gas in core-shell nanowires
• Flavor altering excitations of composite fermions
• Raman Scattering by a Two-Dimensional Fermi Liquid with Spin-Orbit Coupling
• Resonant Enhancement of Inelastic Light Scattering in the Fractional Quantum Hall Regime at $\nu =1/3$
• Elementary electronic excitations in one-dimensional continuum and lattice systems
• One-dimensional Van Hove polaritons
• Collective Modes and Raman Scattering in One Dimensional Electron Systems
• Collective electronic excitation in a trapped ensemble of photogenerated dipolar excitons and free holes revealed by inelastic light scattering
• Dynamical Corrections to Spin Wave Excitations in Quantum Wells due to Coulomb Interactions and Magnetic Ions
• Intrasubband and Intersubband Electron Relaxation in Semiconductor Quantum Wire Structures
• Theory of Resonant Raman Scattering in One Dimensional Electronic systems
• Spin-orbit interaction enabled electronic Raman scattering from charge collective modes
• Spin-Mediated Direct Photon Scattering by Plasmons in BiTeI
• Light Scattering by Low Lying Quasiparticle Excitations in the Fractional Quantum Hall Regime