Abstract
Direct measurement of the spin polarization (P) of the magnetic semiconductor Ga1-xMnxAs was carried out using Andreev reflection spectroscopy. The conductance spectra of high transparency junction showed an intrinsic value for P greater than 85%. Results showed an extreme sensitivity of the measured spin polarization to the nature and quality of the interface for the material.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 566021-566024 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 91 |
| Issue number | 5 |
| State | Published - Aug 1 2003 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy