Abstract
We have examined electron screening at the surface of a ferromagnetic metal. In an applied electric field, the surface develops an induced charge and magnetization. This can be described in terms of a novel spin-dependent screening electric field. A set of integrodifferential equations for screening potentials is derived and solved in some limiting cases. The significant implication relevant to spin-polarized transport in field emission and in magnetic tunnel junctions is discussed.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 640-643 |
| Number of pages | 4 |
| Journal | Physical review letters |
| Volume | 83 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jan 1 1999 |
ASJC Scopus subject areas
- Physics and Astronomy(all)