| Issue |
Europhys. Lett.
Volume 38, Number 3, April III 1997
|
|
|---|---|---|
| Page(s) | 201 - 206 | |
| Section | Condensed matter: structure, thermal and mechanical properties | |
| DOI | https://doi.org/10.1209/epl/i1997-00200-6 | |
| Published online | 01 September 2002 | |
The T=0 phase transition of strictly two-dimensional electrons
1
Faculty of Education, University of Rijeka - 51000 Rijeka, Croatia
2
Department of Physics, University of Zagreb - 10000 Zagreb, Croatia
Received:
30
October
1996
Accepted:
7
March
1997
We analyze the phase transition of a strictly two-dimensional electron crystal (Wigner lattice) to an electron liquid, at zero temperature. The phase transition is discussed in a model based on the interaction of a dislocated electron with phonons of a regular Wigner lattice. With the careful treatment of polaron self-energy, this theory gives the electron melting density in very good agreement with the result obtained from the first-principle calculations of Tanatar and Ceperley.
PACS: 63.20.Kr – Phonon-electron and phonon-phonon interactions / 64.70.-p – Specific phase transitions / 73.20.Dx – Electron states in low-dimensional structures (superlattices, quantum well structures and multilayers)
© EDP Sciences, 1997
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