Journal
PHYSICA B
Volume 298, Issue 1-4, Pages 129-134Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0921-4526(01)00286-1
Keywords
quantum Hall effect; ferromagnetism; superfluidity
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Because of the degeneracy of 2D electron system Landau levels, quantum Hall systems exhibit a wide variety of non-trivial electron-electron interaction effects. Double-layer systems with small layer separations have broken symmetry ground states that can be regarded either as easy-plane ferromagnets or as excitonic superfluids. In this contribution we discuss the superfluid properties of quantum Hall-ferromagnets. (C) 2001 Elsevier Science B.V. All rights reserved.
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