Формализованное описание основной структуры представления данных матричной универсальной объектно-реляционной базы данных

2011/01/01 by A.D. Mokashi, A. Mokashi, S. Li +7 · 4 citations
Computer Science · Materials Science · Mathematics · Physics and Astronomy · #Advanced Database Systems and Queries #Cognitive Computing and Networks #Computer science #Condensed matter physics #Dimension (graph theory) #Discrete mathematics #Divergence (linguistics) #Electrical resistivity and conductivity #Electron #Electron density #Element (criminal law) #Graph Theory and Algorithms #Graphene research and applications #Information retrieval #Mathematics #Matrix (chemical analysis) #Order (exchange) #Phase transition #Physics #Physics of Superconductivity and Magnetism #Pure mathematics #Quantum and electron transport phenomena #Quantum mechanics #Relational database #Representation (politics) #Seebeck coefficient #Silicon #Theoretical computer science #Tuple #cond-mat.str-el

paper · pdf · doi:10.1103/physrevlett.109.096405

published in Вестник Астраханского государственного технического университета. Серия: Управление, вычислительная техника и информатика 109(1), 096405 (American Physical Society) · Published version - 5 pages, 3 figures

openalex publication_date 2011/01/01 · arxiv created 2012/09/03 · arxiv updated 2015/06/03 · openalex created_date 2016/06/24 · openalex updated_date 2026/04/28

Abstract

With decreasing density n(s) the thermopower S of a low-disorder two-dimensional electron system in silicon is found to exhibit a sharp increase by more than an order of magnitude tending to a divergence at a finite disorder-independent density n(t) consistent with the critical form (-T/S) is proportional to (n(s)-n(t))(x) with x=1.0±0.1 (T is the temperature). Our results provide clear evidence for an interaction-induced transition to a new phase at low density in a strongly interacting 2D electron system.

Citations

• Energy scale behind the metallic behaviors in low-density Si MOSFETs
• Metal–insulator transitions and the effects of electron–electron interactions in two-dimensional electron systems
• Metal–insulator transition in two-dimensional electron systems
• Shubnikov-de Haas oscillations near the metal–insulator transition in a two-dimensional electron system in silicon
• Metal-Insulator Transition in Disordered Two-Dimensional Electron Systems
• Self-doping instability of the Wigner-Mott insulator
• On the Interaction of Electrons in Metals
• Sharp increase of the effective mass near the critical density in a metallic two-dimensional electron system
• Critical behaviour of thermopower and conductivity at the metal-insulator transition in high-mobility Si-MOSFETs

Cited by

• Divergent Thermopower without a Quantum Phase Transition
• Two-dimensional system of strongly interacting electrons in silicon (100) structures
• Spin effect on the low-temperature resistivity maximum in a strongly interacting 2D electron system
• Critical Behavior of a Strongly Disordered 2D Electron System: The Cases of Long-Range and Screened Coulomb Interactions