Volume 65, Number 3, February 2004
|Page(s)||427 - 433|
|Section||Interdisciplinary physics and related areas of science and technology|
|Published online||01 January 2004|
Current-induced distortion of a magnetic domain wall
CEA, Service de physique de l'état condensé, Centre d'étude de Saclay F-91191 Gif-sur-Yvette cedex, France
Accepted: 21 November 2003
We consider the spin torque induced by a current flowing ballistically through a magnetic domain wall. In addition to a global pressure in the direction of the electronic flow, the torque has an internal structure of comparable magnitude due to the precession of the electrons' spins at the “Larmor” frequency. As a result, the profile of the domain wall is expected to get distorted by the current and acquires a periodic sur-structure.
PACS: 85.75.-d – Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields / 75.60.-d – Domain effects, magnetization curves, and hysteresis / 75.30.Ds – Spin waves
© EDP Sciences, 2004
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