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Transition from free to interacting composite fermions away from

Y Gallais1, T H Kirschenmann, I Dujovne

  • 1Department of Physics and of Applied Physics, Columbia University, New York, New York 100, USA. yann@phys.columbia.edu

Physical Review Letters
|August 16, 2006
PubMed
Summary

This study investigates spin excitations in composite fermions, revealing that interactions become significant as quasiparticle Landau levels fill. A transition from free to interacting composite fermions is observed, potentially linked to higher-order state condensation.

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