PEAK VALUES OF RESISTIVITY IN HIGH-MOBILITY QUANTUM-HALL-EFFECT SAMPLES

Citation
Pt. Coleridge et al., PEAK VALUES OF RESISTIVITY IN HIGH-MOBILITY QUANTUM-HALL-EFFECT SAMPLES, Physical review. B, Condensed matter, 49(15), 1994, pp. 10798-10801
Citations number
20
Categorie Soggetti
Physics, Condensed Matter
ISSN journal
01631829
Volume
49
Issue
15
Year of publication
1994
Pages
10798 - 10801
Database
ISI
SICI code
0163-1829(1994)49:15<10798:PVORIH>2.0.ZU;2-G
Abstract
Shubnikov-de Haas oscillations have been studied, at low temperatures, in a high-mobility quantum-Hall-effect sample. A linear increase with increasing magnetic field of the peak values of resistance is observe d and is explained quantitatively by a quantum diffusion model with pr edominantly small-angle scattering. The results are inconsistent with recent suggestions that the peak values of conductivity, between integ er-quantum-Hall-effect plateaus, are e2/2h.