Résumé
We present a systematic construction of the probability- and spin-current operators, based on a momentum power expansion of effective Hamiltonians. These operators play an essential role in transport problems related to semiconductor heterostructures, in particular when spin-orbit interaction is taken into account. The result, valid whatever the momentum power and including the linear (Bychkov-Rashba) term as well as the cubic (Dresselhaus or D'yakonov-Perel) term, is of special importance for spintronics.
| langue originale | Anglais |
|---|---|
| Numéro d'article | 235313 |
| journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 85 |
| Numéro de publication | 23 |
| Les DOIs | |
| état | Publié - 14 juin 2012 |
| Modification externe | Oui |
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