Models for granular superconductivity: The effect of quantum fluctuations
✍ Scribed by G.T. Zimányi
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 176 KB
- Volume
- 152
- Category
- Article
- ISSN
- 0921-4526
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📜 SIMILAR VOLUMES
A detailed treatment of the zero-temperature quantum fluctuations of a granular film, modeled by a regular lattice of Josephsoncoupled grains, is presented. For small grains, whose junction reactance is determined by virtual quasi-particle tunneling, mean field theory predicts a universal threshold
We review our recent measurements of the complex AC conductivity of thin InO x films studied as a function of magnetic field through the nominal 2D superconductor-insulator transition. These measurements-the first to probe anything other than the o ¼ 0 response of these archetypical systems-reveal a