Abstract
The position Bvg of a field-tuned superconductor-insulator quantum transition occuring in disordered thin films is examined within the mean field approximation and starting from a hamiltonian of BCS type (favoring the s-wave pairing) with a random potential, and effects of an electron-electron repulsion on the transition field Bvg are also considered. Our calculation shows that the (microscopic) disorder-induced reduction of Bvg suggested experimentally cannot be explained without taking account of the familiar interplay between the randomness and the electron-electron repulsion enhancing the quantum superconducting fluctuation in such systems.
| Original language | English |
|---|---|
| Pages (from-to) | 245-253 |
| Number of pages | 9 |
| Journal | journal of the physical society of japan |
| Volume | 71 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 1 2002 |
| Externally published | Yes |
Keywords
- Superconducting fluctuation
- Superconductor-insulator transition
- Vortex-glass transition
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Ishida, H., Adachi, H., & Ikeda, R. (2002). Microscopic Study of Quantum Vortex-Glass Transition Field in Two-Dimensional Superconductors. journal of the physical society of japan, 71(1), 245-253. https://doi.org/10.1143/JPSJ.71.245