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Long-range order in quasi-one-dimensional conductors
S N Artemenko1, Thomas Nattermann
1Institute for Radioengineering and Electronics of Russian Academy of Sciences, Mokhovaya Strasse 11-7, Moscow 125009, Russia. art@cplire.ru
Abstract:
We study the formation of the charge-density wave long-range order in a system of repulsive 1D electrons coupled to 3D phonons. We show that the charge-density wave can be stabilized by interaction with phonons in quasi-1D crystals and semiconducting nanowires. In the case of metallic atomic chains, interaction with phonons of a 3D substrate is not enough, and violation of the translational invariance by commensurable perturbation or disorder is needed. The possibility of stabilization of superconductivity in 1D electrons with attraction by means of tunnel coupling to a 3D metal is considered.
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