Spin-resolved cyclotron resonance in InAs quantum wells: A study of the energy-dependentgfactor
- 15 March 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 47 (11), 6807-6810
- https://doi.org/10.1103/physrevb.47.6807
Abstract
We report the observation of the spin-doublet splitting of cyclotron resonance (CR) in a two-dimensional electron gas (2DEG). Two discernible CR peaks, originating from spin-conserved transitions between adjacent sets of spin-split Landau states, are observed at a magnetic field as low as 4.4 T. The observed doublet features in the vicinity of even and odd integer filling factors are attributed to the linear dependence of the g factor and effective mass on the electron energy, respectively. In addition, our data show that the g factor of a 2DEG has a smaller energy dependence than that of bulk electrons.Keywords
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