Abstract
Conductance-voltage characteristics of epitaxial interfaces between oxide ferromagnets and oxide superconductors have been measured as a function of temperature and magnetic field. Their functional form is similar to that predicted by theories of transport across nearly transparent contacts between highly spin-polarized ferromagnets and d-wave superconductors. However, their magnetic-field dependencies scale in striking and unusual ways, challenging our current understanding. Existing theories fail to account for apparent non-equilibium effects that are natural for spin injection in such geometries.
| Original language | English (US) |
|---|---|
| Article number | 220505 |
| Pages (from-to) | 2205051-2205054 |
| Number of pages | 4 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 64 |
| Issue number | 22 |
| DOIs | |
| State | Published - Dec 1 2001 |