Volume 66, Number 4, May 2004
|Page(s)||572 - 578|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 May 2004|
Effective theory of incompressible quantum Hall liquid crystals
Department of Physics, University of California San Diego 9500 Gilman Drive, La Jolla, CA 02139, USA
Accepted: 17 March 2004
I propose an effective theory of zero-temperature phases of the quantum Hall stripes: a smectic phase where the stripes are static and a novel quantum nematic phase where the positional order is destroyed by quantum fluctuations. The nematic is viewed as a Bose condensate of dislocations whose interactions are mediated by a gauge field. Collective mode spectrum and the dynamical structure factor in the two phases are calculated.
PACS: 73.43.-f – Quantum Hall effects / 73.43.Lp – Collective excitations / 73.43.Nq – Quantum phase transitions
© EDP Sciences, 2004
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