Intermediate liquid-solid regime near the quantum melting of a two dimensional Wigner molecule

2000/12/12 by Georgios Katomeris, Katomeris, Georgios, Jean-Louis Pichard +1
Physics and Astronomy · #Disordered Systems and Neural Networks (cond-mat.dis-nn) #FOS: Physical sciences #cond-mat.dis-nn

paper · pdf · doi:10.48550/arxiv.cond-mat/0012213

minor corrections

arxiv created 2001/01/10 · arxiv updated 2009/11/30

Abstract

For intermediate values of the Coulomb energy to Fermi energy ratio r_s, the ground state of a few spinless fermions confined on a two dimensional torus is the quantum superposition of a floppy Wigner molecule with delocalized vacancies and of a Fermi liquid of intersticial particles. This raises the question of the existence of an unnoticed liquid-solid phase between the Fermi liquid and the Wigner crystal for fermionic systems in two dimensions.

Related

• From the Fermi Liquid Towards the Wigner Solid in Two Dimensions
• Mesoscopic Wigner crystallization in two dimensional lattice models
• Evidence for a New Intermediate Phase in a Strongly Correlated 2D System\n near Wigner Crystallization
• A new quantum phase in two dimensions
• Melting curves and other phase transitions in a two dimensional electron assembly in a transverse magnetic field as a function of the Landau level filling factor