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Neutral Collective Excitations in Striped Hall States

N. Maeda·T. Aoyama·Y. Ishizuka·K. Ishikawa
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Abstract

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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N. Maeda, T. Aoyama, Y. Ishizuka, K. Ishikawa. 2002-09-10. Neutral Collective Excitations in Striped Hall States. https://doi.org/10.1016/s1386-9477(02)01042-1

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