Electron accumulation layer in ultrastrong magnetic field
When a three-dimensional electron gas is subjected to a very strong magnetic field, it can reach a quasi-onedimensional
 state in which all electrons occupy the lowest Landau level. This state is referred to as the extreme
 quantum limit (EQL) and has been studied in the physics of p...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2017 |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2017
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/129372 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Electron accumulation layer in ultrastrong magnetic field / M. Sammon, Han Fu, B.I. Shklovskii // Физика низких температур. — 2017. — Т. 43, № 2. — С. 283-290. — Бібліогр.: 39 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862563910208454656 |
|---|---|
| author | Sammon, M. Han Fu Shklovskii, B.I. |
| author_facet | Sammon, M. Han Fu Shklovskii, B.I. |
| citation_txt | Electron accumulation layer in ultrastrong magnetic field / M. Sammon, Han Fu, B.I. Shklovskii // Физика низких температур. — 2017. — Т. 43, № 2. — С. 283-290. — Бібліогр.: 39 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | When a three-dimensional electron gas is subjected to a very strong magnetic field, it can reach a quasi-onedimensional
state in which all electrons occupy the lowest Landau level. This state is referred to as the extreme
quantum limit (EQL) and has been studied in the physics of pulsars and bulk semiconductors. Here we present
a theory of the EQL phase in electron accumulation layers created by an external electric field E at the surface
of a semiconductor with a large Bohr radius such as InSb, PbTe, SrTiO₃ (STO), and particularly
in the LaAlO₃/SrTiO₃ (LAO/STO) heterostructure. The phase diagram of the electron gas in the plane of the
magnetic field strength and the electron surface concentration is found for different orientations of the magnetic
field. We find that in addition to the quasi-classical metallic phase (M), there is a metallic EQL phase, as well
as an insulating Wigner crystal state (WC). Within the EQL phase, the Thomas–Fermi approximation is used
to find the electron density and the electrostatic potential profiles of the accumulation layer. Additionally,
the quantum capacitance for each phase is calculated as a tool for experimental study of these phase diagrams.
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| first_indexed | 2025-11-25T23:46:41Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-129372 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-11-25T23:46:41Z |
| publishDate | 2017 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Sammon, M. Han Fu Shklovskii, B.I. 2018-01-19T14:20:44Z 2018-01-19T14:20:44Z 2017 Electron accumulation layer in ultrastrong magnetic field / M. Sammon, Han Fu, B.I. Shklovskii // Физика низких температур. — 2017. — Т. 43, № 2. — С. 283-290. — Бібліогр.: 39 назв. — англ. 0132-6414 PACS: 71.10.−w, 73.20.Qt, 75.70.−i https://nasplib.isofts.kiev.ua/handle/123456789/129372 When a three-dimensional electron gas is subjected to a very strong magnetic field, it can reach a quasi-onedimensional
 state in which all electrons occupy the lowest Landau level. This state is referred to as the extreme
 quantum limit (EQL) and has been studied in the physics of pulsars and bulk semiconductors. Here we present
 a theory of the EQL phase in electron accumulation layers created by an external electric field E at the surface
 of a semiconductor with a large Bohr radius such as InSb, PbTe, SrTiO₃ (STO), and particularly
 in the LaAlO₃/SrTiO₃ (LAO/STO) heterostructure. The phase diagram of the electron gas in the plane of the
 magnetic field strength and the electron surface concentration is found for different orientations of the magnetic
 field. We find that in addition to the quasi-classical metallic phase (M), there is a metallic EQL phase, as well
 as an insulating Wigner crystal state (WC). Within the EQL phase, the Thomas–Fermi approximation is used
 to find the electron density and the electrostatic potential profiles of the accumulation layer. Additionally,
 the quantum capacitance for each phase is calculated as a tool for experimental study of these phase diagrams. We are grateful to Eugene Kolomeisky, Nini Pryds, and
 Brian Skinner for helpful discussions. M. Sammon and
 Han Fu were supported by the Fine Theoretical Physics Institute. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур К 100-летию со дня рождения И.М. Лифшица Electron accumulation layer in ultrastrong magnetic field Article published earlier |
| spellingShingle | Electron accumulation layer in ultrastrong magnetic field Sammon, M. Han Fu Shklovskii, B.I. К 100-летию со дня рождения И.М. Лифшица |
| title | Electron accumulation layer in ultrastrong magnetic field |
| title_full | Electron accumulation layer in ultrastrong magnetic field |
| title_fullStr | Electron accumulation layer in ultrastrong magnetic field |
| title_full_unstemmed | Electron accumulation layer in ultrastrong magnetic field |
| title_short | Electron accumulation layer in ultrastrong magnetic field |
| title_sort | electron accumulation layer in ultrastrong magnetic field |
| topic | К 100-летию со дня рождения И.М. Лифшица |
| topic_facet | К 100-летию со дня рождения И.М. Лифшица |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/129372 |
| work_keys_str_mv | AT sammonm electronaccumulationlayerinultrastrongmagneticfield AT hanfu electronaccumulationlayerinultrastrongmagneticfield AT shklovskiibi electronaccumulationlayerinultrastrongmagneticfield |