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Quantum Melting on a Lattice and a Delocalization Transition by Tsiper, E. V.; Pikus, F. G.; Efros, A. L. is a scholarly article available to read on EtoBox.

What is Quantum Melting on a Lattice and a Delocalization Transition about?

We consider 2d gas of spinless fermions with the Coulomb interaction on a lattice at T=0 and at different values of the hopping amplitude J. At small J electrons form a periodic structure. At filling factor \nu=1/6 this structure melts at J as low as 0.02--0.03 in units of the nearest-neighbor Coulomb energy. We argue that this transition is connected to the dielectric-metal and dielectric-superconductor transitions. To demonstrate this point we perform computer modeling of the systems 6x6 with 6 and 7 electrons and 6x12 with 12 electrons. By sweeping J we compute simultaneously persistent current and structural characteristics of the electron distribution.

Author

Tsiper, E. V.; Pikus, F. G.; Efros, A. L.

Published

1995

Language

EN