Energy spectrum reconstruction at the edge of a two-dimensional electron system with strong spin-orbit coupling

Abstract

We experimentally demonstrate the simultaneous reconstruction of the bulk and the edge energy spectra caused by strong spin-orbit interaction, at the two lowest filling factors $\nu =1$ and $\nu =2$ for $I{n}_{x}G{a}_{1-x}As$ two-dimensional electron system with $x=0.75$. The observed reconstruction is of different character at these filling factors: it is characterized by zeroing of the energy gap at the levels crossing point at $\nu =2$, while the reconstruction at $\nu =1$ goes through the coexistence of two $\nu =1$ quantum Hall phases with different spin projections. An analysis indicates a strong influence of many-body interaction on the reconstruction at $\nu =1$.

6 pages

References in corpus (3)

• Spin gap in the 2D electron system of GaAs/AlGaAs single heterojunctions in weak magnetic fields
• Separately contacted edge states at high imbalance in the integer and fractional quantum Hall effect regime
• Spin ordering: two different scenarios for the single and double layer structures in the fractional and integer quantum Hall effect regimes

Cited by in corpus (2)

• Landau level spin diode in a GaAs two dimensional hole system
• Edge reconstruction of compressible Quantum Hall fluid in the filling fraction range 1/3 to 2/3