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Trion formation in a two-dimensional hole-doped electron gas
Spink, Graham López Ríos, Pablo Drummond, Neil D. Needs, Richard J.
Spink, Graham
López Ríos, Pablo
Drummond, Neil D.
Needs, Richard J.
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EPub Date
Publication Date
2016-07-22
Submitted Date
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Abstract
The interaction between a single hole and a two-dimensional, paramagnetic, homogeneous electron gas is studied using diffusion quantum Monte Carlo simulations. Electron-hole relaxation energies, pair-correlation functions, and electron-hole center-of-mass momentum densities are reported for a range of electron-hole mass ratios and electron densities. We find numerical evidence of a crossover from a collective excitonic state to a trion-dominated state in a density range in agreement with that found in recent experiments on quantum-well heterostructures.
Citation
Spink, G. G., López Ríos, P., Drummond, N. D., & Needs, R. J. (2016). Trion formation in a two-dimensional hole-doped electron gas. Physical Review B, 94(4), 041410(R). DOI: 10.1103/PhysRevB.94.041410
Publisher
American Physical Society
Journal
Physical Review B
Research Unit
DOI
10.1103/PhysRevB.94.041410
PubMed ID
PubMed Central ID
Type
Article
Language
en
Description
Series/Report no.
ISSN
2469-9950
EISSN
2469-9969