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Title: Plateau structure in the Faraday rotation in the graphene quantum Hall system and the frequency-driven two-parameter scaling

Flow diagram of (σ{sub xx},σ{sub xy}) in finite-frequency (ω) regime is numerically studied for the graphene quantum Hall effect (QHE). In a small-ω regime, the ac flow diagram exhibits a behavior qualitatively similar to the dc flow diagram, where the dynamical length scale acts as a cutoff in the ac region, and the flows are between σ{sub xy} = ±(1/2)e{sup 2}/h reflecting the graphene QHE. The dynamical flow is compared with the temperature-driven flow.
Authors:
 [1] ;  [2]
  1. Condensed Matter Theory Laboratory, Riken, Saitama, 351-0198 (Japan)
  2. Department of Physics, University of Tokyo, Hongo, Tokyo 113-0033 (Japan)
Publication Date:
OSTI Identifier:
22280651
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1566; Journal Issue: 1; Conference: ICPS 2012: 31. international conference on the physics of semiconductors, Zurich (Switzerland), 29 Jul - 3 Aug 2012; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; COMPARATIVE EVALUATIONS; FARADAY EFFECT; FLOWSHEETS; GRAPHENE; HALL EFFECT; NUMERICAL ANALYSIS; ROTATION