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Exchange-correlation energy of a multicomponent two-dimensional electron gas

Karkkainen, K ; Koskinen, M ; Reimann, Stephanie LU and Manninen, M (2003) In Physical Review B (Condensed Matter and Materials Physics) 68(20: 205322).
Abstract
We discuss the exchange-correlation energy of a multicomponent (multivalley) two-dimensional (2D) electron gas and show that an extension of the recent parametrization [C. Attaccalite, S. Moroni, P. Gori-Giorgi, and G. B. Bachelet, Phys. Rev. Lett. 88, 256601 (2002)] of the exchange-correlation energy by Attaccalite describes well also the multicomponent system. We suggest a simple mass dependence of the correlation energy and apply it to study the phase diagram of the multicomponent 2D electron (or hole) gas. The results show that even a small mass difference of the components (e.g., heavy and light holes) decreases the concentration of the lighter components already at relatively high densities.
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B (Condensed Matter and Materials Physics)
volume
68
issue
20: 205322
publisher
American Physical Society
external identifiers
  • wos:000187314400060
  • scopus:0348046414
ISSN
1098-0121
DOI
10.1103/PhysRevB.68.205322
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)
id
6f1c8f99-c424-42d9-a8af-e3e9f4c8d453 (old id 292298)
date added to LUP
2016-04-01 16:40:48
date last changed
2022-04-22 23:45:04
@article{6f1c8f99-c424-42d9-a8af-e3e9f4c8d453,
  abstract     = {{We discuss the exchange-correlation energy of a multicomponent (multivalley) two-dimensional (2D) electron gas and show that an extension of the recent parametrization [C. Attaccalite, S. Moroni, P. Gori-Giorgi, and G. B. Bachelet, Phys. Rev. Lett. 88, 256601 (2002)] of the exchange-correlation energy by Attaccalite describes well also the multicomponent system. We suggest a simple mass dependence of the correlation energy and apply it to study the phase diagram of the multicomponent 2D electron (or hole) gas. The results show that even a small mass difference of the components (e.g., heavy and light holes) decreases the concentration of the lighter components already at relatively high densities.}},
  author       = {{Karkkainen, K and Koskinen, M and Reimann, Stephanie and Manninen, M}},
  issn         = {{1098-0121}},
  language     = {{eng}},
  number       = {{20: 205322}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review B (Condensed Matter and Materials Physics)}},
  title        = {{Exchange-correlation energy of a multicomponent two-dimensional electron gas}},
  url          = {{http://dx.doi.org/10.1103/PhysRevB.68.205322}},
  doi          = {{10.1103/PhysRevB.68.205322}},
  volume       = {{68}},
  year         = {{2003}},
}