The absence of decimal g-factor in QHE

Saglam M., BOYACIOĞLU B.

PHYSICA STATUS SOLIDI B-BASIC RESEARCH, vol.230, no.1, pp.133-142, 2002 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 230 Issue: 1
  • Publication Date: 2002
  • Journal Name: PHYSICA STATUS SOLIDI B-BASIC RESEARCH
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.133-142
  • Ankara University Affiliated: Yes

Abstract

The calculation of the effective g-factor in QHE is presented by a simple diagram method and by a flux quantization argument. It is shown that the effective g-factor only takes even integer values: such as 2, 4, 6 ... and so on. Decimal values of g*, which have been observed experimentally, are not allowed. According to the conclusion of the present investigation, an explanation of the observation of decimal g* values must be sought elsewhere such as the change in the effective mass or the presence of local magnetic field effects.