Crystallization and vitrification of electrons in a glass-forming charge liquid

Abstract

Charge ordering (CO) is a phenomenon in which electrons in solids crystallize into a periodic pattern of charge-rich and charge-poor sites owing to strong electron correlations. This usually results in long-range order. In geometrically frustrated systems, however, a glassy electronic state without long-range CO has been observed. We found that a charge-ordered organic material with an isosceles triangular lattice shows charge dynamics associated with crystallization and vitrification of electrons, which can be understood in the context of an energy landscape arising from the degeneracy of various CO patterns. The dynamics suggest that the same nucleation and growth processes that characterize conventional glass-forming liquids guide the crystallization of electrons. These similarities may provide insight into our understanding of the liquid-glass transition.

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Cited by in corpus (12)

• Evidence for electronically-driven ferroelectricity in the family of strongly correlated dimerized BEDT-TTF molecular conductors
• Charge order textures induced by non-linear lattice coupling in a half-doped manganite
• Melting of charge order in the low-temperature state of an electronic ferroelectric
• Anomalous 2D-confined electronic transport in layered organic charge-glass systems
• Involvement of structural dynamics in the charge-glass formation in molecular metals
• Real-space observation of emergent complexity of phase evolution in micrometer-sized IrTe${}_2$ crystals
• Microstructuring YbRh2Si2 for resistance and noise measurements down to ultra-low temperatures
• Finite Temperature Properties of Geometrically Charge Frustrated Systems
• Combined experimental and theoretical studies on glasslike transitions in the frustrated molecular conductors $\theta$-(BEDT-TTF)${}_{2}M{M}^{\prime }$(SCN)${}_4$
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• Electronic correlations and spin frustration in the molecular conductors $\kappa$-(BEDT-TTF)${}_2$X probed by magnetic quantum oscillations
• Comparison of the charge-crystal and charge-glass state in geometrically frustrated organic conductors studied by fluctuation spectroscopy