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  Hartree-Fock description of a Wigner crystal in two dimensions

Kagalovsky, V., Kravchenko V, S., & Nemirovsky, D. (2020). Hartree-Fock description of a Wigner crystal in two dimensions. Physica E: Low-Dimensional Systems And Nanostructures, 119: 114016. doi:10.1016/j.physe.2020.114016.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-6DF7-A Version Permalink: http://hdl.handle.net/21.11116/0000-0006-6DF8-9
Genre: Journal Article

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Kagalovsky, Victor1, Author              
Kravchenko V, S.2, Author
Nemirovsky, D.2, Author
Affiliations:
1Max Planck Institute for the Physics of Complex Systems, Max Planck Society, ou_2117288              
2external, ou_persistent22              

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 Abstract: We perform numerical studies of strongly interacting electrons on a two-dimensional lattice in the Hartree-Fock approximation. The results clearly show significant ordering of the positions of the electrons with decreasing temperature signaling the formation of a two-dimensional Wigner crystal. The degree of order as a function of temperature is in a good qualitative agreement with experimental results for the threshold voltage at which the depinning of the crystal occurs. In the limit of very strong electron-electron interactions, the ordering of the electrons becomes almost perfect.

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 Dates: 2020-02-202020-05-01
 Publication Status: Published in print
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Title: Physica E: Low-Dimensional Systems And Nanostructures
  Other : Physica E
Source Genre: Journal
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Publ. Info: Amsterdam : North-Holland
Pages: - Volume / Issue: 119 Sequence Number: 114016 Start / End Page: - Identifier: ISSN: 1386-9477
CoNE: https://pure.mpg.de/cone/journals/resource/954926250618