Avoiding Stripe Order: Emergence of the Supercooled Electron Liquid
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In the absence of disorder, electrons can display glassy behavior through supercooling the liquid state, avoiding the solidification into a charge ordered state. Such supercooled electron liquids are experimentally found in organic 𝜃- M M ′ compounds. We present theoretical results that qualitatively capture the experimental findings. At intermediate temperatures, the conducting state crosses over into a weakly insulating pseudogap phase. The stripe order phase transition is first order, so that the liquid phase is metastable below T s . In the supercooled liquid phase, the resistivity increases further and the density of states at the Fermi level is suppressed, indicating kinetic arrest and the formation of a glassy state. Our results are obtained using classical Extended Dynamical Mean Field Theory.
KeywordsElectron glass Supercooled electron liquid Stripes
L.R. was supported by the Dutch Science Foundation (NWO) through a Rubicon grant. A.R. and S.F. were supported by the French National Research Agency through Grant No. ANR-12-JS04-0003-01 SUBRISSYME. V.D. was supported by the NSF grants DMR-1005751 and DMR-1410132. V. D. would like to thank CPTGA for financing a visit to Grenoble, and KITP at UCSB, where part of the work was performed.
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