Density dependent spin susceptibility and effective mass in interacting quasi-two dimensional electron systems
arXiv:cond-mat/0408335 · doi:10.1103/PhysRevB.72.075308
Abstract
Motivated by recent experimental reports, we carry out a Fermi liquid many-body calculation of the interaction induced renormalization of the spin susceptibility and effective mass in realistic two dimensional (2D) electron systems as a function of carrier density using the leading-order `ladder-bubble' expansion in the dynamically screened Coulomb interaction. Using realistic material parameters for various semiconductor-based 2D systems, we find reasonable quantitative agreement with recent experimental susceptibility and effective mass measurements. We point out a number of open questions regarding quantitative aspects of the comparison between theory and experiment in low-density 2D electron systems.
References in corpus (5)
- Measurements of the density-dependent many-body electron mass in 2D GaAs/AlGaAs Heterostructures
- Dependence of spin susceptibility of a two-dimensional electron system on the valley degree of freedom
- Quasiparticle effective mass divergence in two dimensional electron systems
- Temperature dependent effective mass renormalization in a Coulomb Fermi liquid
- Dispersion Instability in Strongly Interacting Electron Liquids