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Title:
Domain textures in the fractional quantum Hall effect
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Abstract:
Domain textures in the bulk of fractional quantum Hall liquids show great impact on macroscopic states and edge modes but remain elusive in experiments. We report large nematic liquid domains situated near the Fermi level at filling factor v = 7/3 using double resonant inelastic light scattering of plasmons. The resonant coupling of nematic plasmons to optical excitons distinguishes different types of domains. We apply this method to other filling factors including to the investigations of the ground state around v = 5/2. Such results present a profound understanding of the light scattering experiments in quantum Hall liquids and offer insights on their rich domain textures.
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