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...
Збережено в:
| Дата: | 2002 |
|---|---|
| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2002
|
| Назва видання: | Физика низких температур |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/128730 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | 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. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
irk-123456789-128730 |
|---|---|
| record_format |
dspace |
| spelling |
irk-123456789-1287302018-01-14T03:03:11Z Wigner-like crystallization of Anderson-localized electron systems with low electron densities Slutskin, A.A. Pepper, M. Kovtun, H.A. Низкоразмерные и неупорядоченные системы 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. 2002 Article 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 http://dspace.nbuv.gov.ua/handle/123456789/128730 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
Низкоразмерные и неупорядоченные системы Низкоразмерные и неупорядоченные системы |
| spellingShingle |
Низкоразмерные и неупорядоченные системы Низкоразмерные и неупорядоченные системы Slutskin, A.A. Pepper, M. Kovtun, H.A. Wigner-like crystallization of Anderson-localized electron systems with low electron densities 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. |
| format |
Article |
| author |
Slutskin, A.A. Pepper, M. Kovtun, H.A. |
| author_facet |
Slutskin, A.A. Pepper, M. Kovtun, H.A. |
| author_sort |
Slutskin, A.A. |
| title |
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_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_sort |
wigner-like crystallization of anderson-localized electron systems with low electron densities |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
2002 |
| topic_facet |
Низкоразмерные и неупорядоченные системы |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/128730 |
| 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. |
| series |
Физика низких температур |
| work_keys_str_mv |
AT slutskinaa wignerlikecrystallizationofandersonlocalizedelectronsystemswithlowelectrondensities AT pepperm wignerlikecrystallizationofandersonlocalizedelectronsystemswithlowelectrondensities AT kovtunha wignerlikecrystallizationofandersonlocalizedelectronsystemswithlowelectrondensities |
| first_indexed |
2023-10-18T20:55:59Z |
| last_indexed |
2023-10-18T20:55:59Z |
| _version_ |
1796151488116948992 |