Wigner-like crystallization of Anderson-localized electron systems with low electron densities
We consider an electron system under conditions of strong Anderson localization, taking into account interelectron long-range Coulomb repulsion. We establish that at sufficiently low electron densities and sufficiently low temperatures the Coulomb electron interaction brings about ordering of the An...
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| Published in: | Физика низких температур |
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| Date: | 2002 |
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| Format: | Article |
| Language: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2002
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/128730 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Wigner-like crystallization of Anderson-localized electron systems with low electron densities / A.A. Slutskin, M. Pepper, H.A. Kovtun // Физика низких температур. — 2002. — Т. 28, № 12. — С. 1304-1309. — Бібліогр.: 8. назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862704357043077120 |
|---|---|
| author | Slutskin, A.A. Pepper, M. Kovtun, H.A. |
| author_facet | Slutskin, A.A. Pepper, M. Kovtun, H.A. |
| citation_txt | Wigner-like crystallization of Anderson-localized electron systems with low electron densities / A.A. Slutskin, M. Pepper, H.A. Kovtun // Физика низких температур. — 2002. — Т. 28, № 12. — С. 1304-1309. — Бібліогр.: 8. назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | We consider an electron system under conditions of strong Anderson localization, taking into account interelectron long-range Coulomb repulsion. We establish that at sufficiently low electron densities and sufficiently low temperatures the Coulomb electron interaction brings about ordering of the Anderson-localized electrons into a structure that is close to an ideal (Wigner) crystal lattice, provided the dimension of the system is > 1. This Anderson-Wigner glass (AWG) is a new macroscopic electron state that, on the one hand, is beyond the conventional Fermi glass concept, and on the other hand, qualitatively differs from the known "plain" Wigner glass (inherent in self-localized electron systems) in that the random slight electron displacements from the ideal crystal sites essentially depend on the electron density. With increasing electron density the AWG is found to turn into the plain Wigner glass or Fermi glass, depending on the width of the random spread of the electron levels. It is shown that the residual disorder of the AWG is characterized by a multi-valley ground-state degeneracy akin to that in a spin glass. Some general features of the AWG are discussed, and a new conduction mechanism of a creep type is predicted.
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| first_indexed | 2025-12-07T16:50:45Z |
| format | Article |
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| id | nasplib_isofts_kiev_ua-123456789-128730 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-12-07T16:50:45Z |
| publishDate | 2002 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Slutskin, A.A. Pepper, M. Kovtun, H.A. 2018-01-13T19:20:30Z 2018-01-13T19:20:30Z 2002 Wigner-like crystallization of Anderson-localized electron systems with low electron densities / A.A. Slutskin, M. Pepper, H.A. Kovtun // Физика низких температур. — 2002. — Т. 28, № 12. — С. 1304-1309. — Бібліогр.: 8. назв. — англ. 0132-6414 PACS: 71.45.-d, 72.15.Rn, 73.20.-r, 73.40.-c https://nasplib.isofts.kiev.ua/handle/123456789/128730 We consider an electron system under conditions of strong Anderson localization, taking into account interelectron long-range Coulomb repulsion. We establish that at sufficiently low electron densities and sufficiently low temperatures the Coulomb electron interaction brings about ordering of the Anderson-localized electrons into a structure that is close to an ideal (Wigner) crystal lattice, provided the dimension of the system is > 1. This Anderson-Wigner glass (AWG) is a new macroscopic electron state that, on the one hand, is beyond the conventional Fermi glass concept, and on the other hand, qualitatively differs from the known "plain" Wigner glass (inherent in self-localized electron systems) in that the random slight electron displacements from the ideal crystal sites essentially depend on the electron density. With increasing electron density the AWG is found to turn into the plain Wigner glass or Fermi glass, depending on the width of the random spread of the electron levels. It is shown that the residual disorder of the AWG is characterized by a multi-valley ground-state degeneracy akin to that in a spin glass. Some general features of the AWG are discussed, and a new conduction mechanism of a creep type is predicted. We gratefully acknowledge interesting and useful discussions with I. Lerner and I. Yurkevich. We are sincerely thankful to B. Shklovskii for helpful remarks. The visit of A. Slutskin to the Cavendish Laboratory was supported by the Royal Society. A. S. would like to express his gratitude. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Низкоразмерные и неупорядоченные системы Wigner-like crystallization of Anderson-localized electron systems with low electron densities Article published earlier |
| spellingShingle | Wigner-like crystallization of Anderson-localized electron systems with low electron densities Slutskin, A.A. Pepper, M. Kovtun, H.A. Низкоразмерные и неупорядоченные системы |
| title | Wigner-like crystallization of Anderson-localized electron systems with low electron densities |
| title_full | Wigner-like crystallization of Anderson-localized electron systems with low electron densities |
| title_fullStr | Wigner-like crystallization of Anderson-localized electron systems with low electron densities |
| title_full_unstemmed | Wigner-like crystallization of Anderson-localized electron systems with low electron densities |
| title_short | Wigner-like crystallization of Anderson-localized electron systems with low electron densities |
| title_sort | wigner-like crystallization of anderson-localized electron systems with low electron densities |
| topic | Низкоразмерные и неупорядоченные системы |
| topic_facet | Низкоразмерные и неупорядоченные системы |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/128730 |
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