Kukushkin, I. V. and Falko, Vladimir and Haug, R. J. and von Klitzing, K. and Eberl, K and Tötemayer, K. (1994) Evidence of the triangular lattice of crystallized electrons from time resolved luminescence. Physical review letters, 72 (22). pp. 3594-3597. ISSN 1079-7114
Abstract
We show that the recombination kinetics of two-dimensional electrons with acceptor bound holes is a sensitive probe of the local spatial structure of the electronic system. Using the time resolved magnetoluminescence, we extract the regime of the electron Wigner solid and establish its local configuration consistent with the triangular lattice model. Up to the melting point, the amplitude of the thermal vibrations of the electron crystal is derived from the temperature dependence of the recombination kinetics.