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We study the percolative superconducting transition as the density of randomly placed attractive centers grows in a host metal. Employing the Hubbard-Stratanovich transformation for the interaction and allowing for spatial,… Click to show full abstract
We study the percolative superconducting transition as the density of randomly placed attractive centers grows in a host metal. Employing the Hubbard-Stratanovich transformation for the interaction and allowing for spatial, thermal fluctuations of the pairing field, we obtain real-space features of the transition from weak to strong coupling. Spectral and transport properties are studied in detail. BCS-BEC crossover is discussed in the context of site dilution of attractive centers.
Keywords:
site dilution;
effect site;
dilution two;
hubbard
Journal Title: Physical Review B
Year Published: 2018
Link to full text (if available)
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Journal Title: Physical Review B
Year Published: 2018
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!