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Divergence of the effective mass in a strongly correlated 2D electron system

Speaker: 
Sergey Kravchencko (Northeastern University, USA)
Date: 
Wed, 27/03/2013 - 11:00am to 12:00pm
Location: 
S13-M01-11 (Physics Conference Room)
Event Type: 
Seminars

Abstract

The spin susceptibility of strongly correlated electrons in a low-disorder 2D electron system exhibits a sharp increase tending to a divergence at a finite electron density. Surprisingly, this behavior is due to the divergence of the effective mass rather than that of the g-factor. Our results provide clear evidence for an interaction-induced transition to a new phase that may be a precursor phase or a direct transition to the long sought-after Wigner solid.

 

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