Quantum Wigner crystal in a two-dimensional electron system?

Speaker
S. V. Kravchenko (Northeastern University, U.S.A)
Date
14/05/2014 - 15:00Add to Calendar 2014-05-14 15:00:00 2014-05-14 15:00:00 Quantum Wigner crystal in a two-dimensional electron system? The spin susceptibility of strongly correlated electrons in a low-disorder two-dimensional 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 phase transition to a new phase that may be a precursor phase or a direct transition to the long sought-after Wigner solid. Resnick Building (209), seminar room 210 המחלקה לפיזיקה physics.dept@mail.biu.ac.il Asia/Jerusalem public
Place
Resnick Building (209), seminar room 210
Abstract

The spin susceptibility of strongly correlated electrons in a low-disorder two-dimensional 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 phase transition to a new phase that may be a precursor phase or a direct transition to the long sought-after Wigner solid.

תאריך עדכון אחרון : 15/05/2014