Details

Autor(en) / Beteiligte

• KATO, Y. K
• MYERS, R. C
• GOSSARD, A. C
• AWSCHALOM, D. D

Titel

Current-induced spin polarization in strained semiconductors

Ist Teil von

• Physical review letters, 2004-10, Vol.93 (17), p.176601.1-176601.4, Article 176601

Ort / Verlag

Ridge, NY: American Physical Society

Erscheinungsjahr

2004

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• The polarization of conduction electron spins due to an electrical current is observed in strained nonmagnetic semiconductors using static and time-resolved Faraday rotation. The density, lifetime, and orientation rate of the electrically polarized spins are characterized by a combination of optical and electrical methods. In addition, the dynamics of the current-induced spins are investigated by utilizing electrical pulses generated from a photoconductive switch. These results demonstrate the possibility of a spin source for semiconductor spintronic devices without the use of magnetic materials.