Neutral Collective Excitations in Striped Hall States

Details Neutral Collective Excitations in Striped Hall States Neutral Collective Excitations in Striped Hall States

2002-09-10

arxiv.org/abs/cond-mat/0209227v1

PhysicaE18:122,2003

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

2 pages, 2 figures, LT23 Hiroshima

Scientific paper

In the striped Hall state, a magnetic translation in one direction is spontaneously broken to the discrete translation. The spectrum of the neutral collective excitation is obtained in the single mode approximation at half-filled third and fourth Landau levels. The spectrum is anisotropic and has a multiple line node structure. In one direction, the spectrum resembles the liquid Helium spectrum with the phonon and roton minimum.

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