We investigate the zero-temperature phase diagram and melting transition of a two-dimensional Wigner crystal (WC) of classical Coulombic particles in a double-layer structure. In contrast with the single-layer WC, we find that five different crystalline phases are stable in different ranges of inter-layer distance/particle density. Phase boundaries consist of both continuous and discontinuous transitions. From the phonon frequencies of the system we evaluate the melting temperature of the WC. We suggest the possibility of structural phase transitions as a function of temperature.

Stability and dynamical properties of a double-layer Wigner crystal in two dimensions / Goldoni, G.; Schweigert, V.; Peeters, F. M.. - In: SURFACE SCIENCE. - ISSN 0039-6028. - 361-362:1-3(1996), pp. 163-166. [10.1016/0039-6028(96)00359-7]

Stability and dynamical properties of a double-layer Wigner crystal in two dimensions

Goldoni G.;
1996

Abstract

We investigate the zero-temperature phase diagram and melting transition of a two-dimensional Wigner crystal (WC) of classical Coulombic particles in a double-layer structure. In contrast with the single-layer WC, we find that five different crystalline phases are stable in different ranges of inter-layer distance/particle density. Phase boundaries consist of both continuous and discontinuous transitions. From the phonon frequencies of the system we evaluate the melting temperature of the WC. We suggest the possibility of structural phase transitions as a function of temperature.
1996
361-362
1-3
163
166
Stability and dynamical properties of a double-layer Wigner crystal in two dimensions / Goldoni, G.; Schweigert, V.; Peeters, F. M.. - In: SURFACE SCIENCE. - ISSN 0039-6028. - 361-362:1-3(1996), pp. 163-166. [10.1016/0039-6028(96)00359-7]
Goldoni, G.; Schweigert, V.; Peeters, F. M.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1264963
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