Temperature dependent effective mass renormalization in 2D electron systems

Abstract

We calculate, as a function of temperature and density, the electron-electron interaction induced quasiparticle effective mass renormalization in 2D electron systems within the leading-order dynamically screened Coulomb interaction expansion. We find an unexpected nonanalyticity and nonmonotonicity in the temperature dependent effective mass with the renormalized mass linearly increasing with temperature at low temperatures for all densities.

This is a revised and extended version. Accepted for publishing by PRB

References in corpus (4)

• Spin Susceptibility of an Ultra-Low Density Two Dimensional Electron System
• Sharp increase of the effective mass near the critical density in a metallic 2D electron system
• Spin-independent origin of the strongly enhanced effective mass in a dilute 2D electron system
• Sharply increasing effective mass: a precursor of the spontaneous spin polarization in a dilute two-dimensional electron system

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• $m^{\ast }$ of two-dimensional electron gas: a neural canonical transformation study
• Dispersion Instability in Strongly Interacting Electron Liquids
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• Quasiparticle Mass Enhancement and Fermi Surface Shape Modification in Oxide Two-Dimensional Electron Gases
• The two-dimensional electron self-energy: Long-range Coulomb interaction
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• Study of two-dimensional electron systems in the renormalized-ring-diagram approximation