Abstract
For a pure superconductor in a d-wave-like state at temperatures T well below the critical temperature Tc, the deviation of the penetration depth from its zero-temperature value (0) is proportional to T. When the concentration ni of strongly scattering impurities is nonzero, Tn, where n=2 for T<T*Tc and n=1 for T*<TTc. The crossover temperature T* and the increase in (0) scale as ni up to logarithmic corrections when resonant scattering is dominant. We argue that this case is relevant to recent measurements on YBa2Cu3O7- and present specific results for a model pairing state with dx2-y2 symmetry.
Original language | English (US) |
---|---|
Pages (from-to) | 4219-4222 |
Number of pages | 4 |
Journal | Physical Review B |
Volume | 48 |
Issue number | 6 |
DOIs | |
State | Published - 1993 |
ASJC Scopus subject areas
- Condensed Matter Physics