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Title: The quantum Hall effect helicity

The quantum Hall effect in semiconductor heterostructures is explained by two signs in the angular momentum j=l±s and g=(2j+1)/(2l+1) along with the Landau factor (n+1/2). These modifications in the existing theories explain all of the fractional charges. The helicity which is the sign of the product of the linear momentum with the spin p.s plays an important role for the understanding of the data at high magnetic fields. In particular it is found that particles with positive sign in the spin move in one direction and those with negative sign move in another direction which explains the up and down stream motion of the particles.
Authors:
 [1] ;  [2]
  1. Department of Physics, University of Malaya, Kuala Lumpur 50603 (Malaysia)
  2. (India)
Publication Date:
OSTI Identifier:
22391471
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1656; Journal Issue: 1; Conference: APS 2012: 5. Asian Physics Symposium, Bandung (Indonesia), 10-12 Jul 2012; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; HALL EFFECT; HELICITY; HETEROJUNCTIONS; LANDAU FLUCTUATIONS; LINEAR MOMENTUM; MODIFICATIONS; PARTICLES; SEMICONDUCTOR MATERIALS; SPIN