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26 April 2024

» arxiv » 0904.1230

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Charge $4e$ superconductivity from pair density wave order in certain high temperature superconductors
E. Berg ; E. Fradkin ; S. A. Kivelson ;
Date:	7 Apr 2009
Abstract:	A series of experimental anomalies observed in certain materials in the family of high temperature superconducting cuprates have recently been interpreted as evidence for the existence of a novel "striped superconducting" state. Here, we show that thermal melting of the striped superconducting state can lead to a charge $4e$ superconducting state, with a corresponding fractional flux quantum $hc/4e$. We propose experiments which could unambiguously identify this state.
Source:	arXiv, 0904.1230
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