- 2D Crystals
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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