Disorder-enhanced superconductivity in a quasi-one-dimensional strongly correlated system
A. Lowe, V. Kagalovsky, I. V. Yurkevich
DOI 10.1103/PhysRevResearch.3.033059 · Physical Review Research
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Abstract
We perform an analytical and numerical study of a superconducting instability in quasi-one-dimensional (quasi-1D) disordered systems. Modeling them as an array of Luttinger liquids with Josephson-type interchain coupling, we employed renormalization-group analysis with an extensive search for parameters that support superconductivity enhancement. We have found that this phenomenon is possible in the parameters range that support a latent disorder-driven phase transition between charge- and spin-density-wave phases. Our results may explain the experimental observation of disorder-enhanced superconductivity.
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