Metal-to-Insulator Transitions in Strongly Correlated Regime

Applied Sciences

Ken West¹  Loren Pfeiffer¹  Jian Huang² 

[1] Department of Electrical Engineering, Princeton University, Princeton, NJ 08544, USA;Department of Physics and Astronomy, Wayne State University, Detroit, MI 48201, USA;

关键词: electron-electron interaction;    metal-insulator transition;    strongly correlated phenomena;    Wigner crystal;    liquid-solid phase transition;    non-Fermi liquid;   

DOI  :  10.3390/app9010080

来源: DOAJ

【 摘 要 】

Transport results from measuring ultra-clean two-dimensional systems, containing tunable carrier densities from 7 ×10 8cm− 2to ∼ 1 ×10 10cm− 2 , reveal a strongly correlated liquid up tor s≈ 40 where a Wigner crystallization is anticipated. A critical behavior is identified in the proximity of the metal-to-insulator transition. The nonlinear DC responses forr s> 40 captures hard pinning modes that likely undergo a first order transition into an intermediate phase in the course of melting.

【 授权许可】

Unknown