Abstract
Nonlocal spin injection is demonstrated in CoCuCo lateral spin valves. Measurement of a series of structures with varying Cu length between the Co electrodes permits a direct determination of both the Cu spin diffusion length λs and the spin injection polarization P at the CoCu interface. The value of λs is 200±20 nm at 10 K and ≥110 nm at 300 K, which is shorter than previously reported, due to the possible presence of impurities in the Cu. However, the value of P is >7%, which is improved compared with previous reports of 2%, which is attributed to a higher interfacial quality.
| Original language | English (US) |
|---|---|
| Article number | 052509 |
| Pages (from-to) | 1-3 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 88 |
| Issue number | 5 |
| DOIs | |
| State | Published - 2006 |
| Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)