Overview of the macroscopically ordered exciton state |
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The macroscopically ordered exciton state (MOES) is characterised by a periodic array of higher-density exciton beads with spatial order on a macroscopic length. The MOES appears in the external ring, which is farthest from the excitation spot where the exciton gas is the coldest. This new phase transition was not predicted. Studies of the MOES properties and the search for the origin of this new state are in progress. L.V. Butov, A.C. Gossard, and D.S. Chemla, Macroscopically ordered state in an exciton system, cond-mat/0204482 April 22, 2002; Nature 418, 751 (2002). |