The metal-insulator transition in 2D systems at T = 0: one-particle approach

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dc.creatorTarasov, Yu. V.
dc.date2002-07-19
dc.date.accessioned2026-07-07T02:46:21Z
dc.date.available2026-07-07T02:46:21Z
dc.descriptionThe conductance of a disordered finite-size electron system is calculated by reducing the initial dynamic problem of arbitrary dimensionality to strictly one-dimensional problems for one-particle mode propagators. The metallic ground state of a two-dimensional conductor, which is considered as a limiting case of the actually three-dimensional quantum waveguide, is shown to result from its multi-modeness. On lowering the waveguide thickness, in practice, e.g., due to application of the ``pressing'' potential (depletion voltage), the electron system undergoes a set of continuous phase transitions connected with the discrete change in the number of extended modes. The closing of the last current-carrying mode is interpreted as the electron system transition from metallic to dielectric state. The results obtained agree qualitatively with the observed ``anomalies'' of the resistance of different electron and hole systems.
dc.descriptionRevtex4, 12 pages, 3 eps figures. Submitted for publication
dc.identifierhttps://arxiv.org/abs/cond-mat/0207480
dc.identifierhttp://arxiv.org/abs/cond-mat/0207480
dc.identifierLow Temp. Phys. v. 29, 45-54 (2003) [Russian Ref.: Fiz. Nizk. Temp. v. 29, 58-70 (2003).]
dc.identifierdoi:10.1063/1.1542377
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/19640
dc.subjectDisordered Systems and Neural Networks
dc.subjectMesoscale and Nanoscale Physics
dc.titleThe metal-insulator transition in 2D systems at T = 0: one-particle approach
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