Two-Dimensional Wigner Crystal in Anisotropic Semiconductor

Details Two-Dimensional Wigner Crystal in Anisotropic Semiconductor Two-Dimensional Wigner Crystal in Anisotropic Semiconductor

1999-12-22

arxiv.org/abs/cond-mat/9912397v1

Phys. Rev. B 65, 233209 (2002)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, revtex, 4 figures

Scientific paper

10.1103/PhysRevB.65.233209

We investigate the effect of mass anisotropy on the Wigner crystallization transition in a two-dimensional (2D) electron gas. The static and dynamical properties of a 2D Wigner crystal have been calculated for arbitrary 2D Bravais lattices in the presence of anisotropic mass, as may be obtainable in Si MOSFETs with (110) surface. By studying the stability of all possible lattices, we find significant change in the crystal structure and melting density of the electron lattice with the lowest ground state energy.

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