Two-Dimensional Wigner Crystal in Anisotropic Semiconductor

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.Comment: 4 pages, revtex, 4 figure

Il vecchio marinaio

A selection of poems by S.T. Coleridge, with Introduction (pp. 5-11) and apparatus (pp. 196-212). The translations are by M. Bacigalupo, except for "The Rime of the Ancient Mariner", translated by M. Luzi

Poems

lxi, 589 p.; 21 cm

La rima del vecchio marinaio

A bilingual edition of S.T. Coleridge's "The Rime of the Ancient Mariner" and "Kubla Khan", with Annotations (pp. 69-104), Afterword (pp. 105-36), and a note on "Dore' and Coleridge's illustrators" (pp. 139-43). The verse translation id by G. Giudici, a major late 20th-century Italian poet

Poemas

xxxvii+589hlm.;21c