Details

Autor(en) / Beteiligte

• Khvalkovskiy, A. V.
• Cros, V.
• Apalkov, D.
• Nikitin, V.
• Krounbi, M.
• Zvezdin, K. A.
• Anane, A.
• Grollier, J.
• Fert, A.

Titel

Matching domain-wall configuration and spin-orbit torques for efficient domain-wall motion

Ist Teil von

• Physical review. B, Condensed matter and materials physics, 2013-01, Vol.87 (2), Article 020402

Erscheinungsjahr

2013

Quelle

PROLA

Beschreibungen/Notizen

• In our numerical study, we identify the best conditions for efficient domain-wall motion by spin-orbit torques originating from the spin Hall effect or Rashba effect. We demonstrate that the effect depends critically on the domain-wall configuration, the current injection scheme, and the symmetry of the spin-orbit torque. The best identified configuration corresponds to a Neel wall driven by the spin Hall effect in a narrow strip with perpendicular magnetic anisotropy. In this case, the domain-wall velocity can be a factor of 10 larger than that for the conventional current-in-plane spin-transfer torque.