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期刊论文
Two-dimensional Wigner crystal in anisotropic semiconductors
PHYSICAL REVIEW B, VOLUME 65, 233209,-0001,():
We investigate tile effect of mass anisotropy on tile Wigner crvstallization transition in a two-dimensional (2D) electron gas. Tile static and dynamical properties of a 2D Wigner crysstal have been calculated for arbitrary 2D Bravais lattices in tile presence of anisotropic mass, as may be obtainable in Si metal-oxide-selniconductor field-effect transistors with (110) surface, as well as tile newly discovered organic senticonduc-tor systems. By studying the stability of all possible lattices, we find significant changes in tile crystal structure and melting density of the electron lattice with tile lowest ground state energy.
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