Persistence of Vibrational Modes in a Classical Two-Dimensional Electron Liquid

Details Persistence of Vibrational Modes in a Classical Two-Dimensional Electron Liquid Persistence of Vibrational Modes in a Classical Two-Dimensional Electron Liquid

2000-01-04

arxiv.org/abs/cond-mat/0001026v1

J. Phys.: Condensed Matter 12, L83 (2000)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 figures; to be published in J. Phys.: Condensed Matter

Scientific paper

10.1088/0953-8984/12/6/103

Vibrational density of states of a classical two-dimensional electron system obtained with a molecular-dynamics simulation is shown to have a peak in both solid and liquid phases. From an exact diagonalisation of the dynamical matrix, the peak is identified to be vibrational modes having wavelengths of the order of the electron spacing, and the result is interpreted as persistent vibrational modes with short wavelengths in a liquid.

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