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“Approaching an (unknown) phase transition in 2D”

August 26, 2013 @ 4:00 pm - 5:00 pm

Sergey Kravchenko, Northeastern University
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 phase 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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Date:
August 26, 2013
Time:
4:00 pm - 5:00 pm

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