Tuning of the Gap in a Laughlin-Bychkov-Rashba Incompressible Liquid
arXiv:cond-mat/0411524 · doi:10.1103/PhysRevLett.94.246801
Abstract
We report on our investigation of the influence of Bychkov-Rashba spin-orbit interaction (SOI) on the incompressible Laughlin state. We find that experimentally obtainable values of the spin-orbit coupling strength can induce as much as a 25% increase in the quasiparticle-quasihole gap Eg at low magnetic fields in InAs, thereby increasing the stability of the liquid state. The SOI-modulated enhancement of Eg is also significant for filling factors 1/5 and 1/7, where the FQH state is usually weak. This raises the intriguing possibility of tuning, via the SO coupling strength, the liquid to solid transition to much lower densities.
arXiv comment4 pages, 3 figures
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Cited by in corpus (5)
- Spin-orbit effects in GaAs quantum wells: Interplay between Rashba, Dresselhaus, and Zeeman interactions
- Tunability of the Fractional Quantum Hall States in Buckled Dirac Materials
- Many-body corrections to ESR energy and spin-wave excitations in two-dimensional systems with Bychkov-Rashba spin splitting
- Spin precession in a fractional quantum Hall state with spin-orbit coupling
- Influence of spin-orbit interaction on quantum cascade transitions