Possible new bubble phases of two-dimensional electrons in higher Landau levels

Physics – Condensed Matter – Mesoscale and Nanoscale Physics

Scientific paper

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4 pages, 4 figures; to appear in the Proceedings of the 16th International Conference on High Magnetic Fields in Semiconductor

Scientific paper

10.1142/S0217979204027207

We argue that, due to the specific form of the interaction potential between electronic guiding centers, a bubble crystal (BC) with basis may be energetically more favorable than the usual bubble solid. This new BC has well-defined normal eigenmodes, and remains energetically favorable when the effects of finite sample thickness and of screening by electrons in lower LLs are taken into account.

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