Spin transfer torque and magnetic dynamics in tunnel junctions
Authors:
- P. Ogrodnik,
- Maciej Piotr Wilczyński,
- R. Świrkowicz,
- Józef Barnaś
Abstract
Spin transfer torque and current-induced magnetic dynamics in tunnel junctions are analyzed theoretically. The spin torque is calculated in the framework of spin-polarized free-electron model while spin dynamics of a magnetically free layer is studied within the macrospin model and Landau-Lifshitz-Gilbert equation. The conditions required for switching magnetic moment of the free layer are also discussed. It is shown that the interlayer exchange coupling can play an important role, particularly in junctions with thin tunnel barriers, and can lead to current-induced steady-state precessional modes in the absence of external magnetic field. © 2010 The American Physical Society.
- Record ID
- UAM0c5322fcef2e49aa81f672589212ff72
- Author
- Journal series
- Physical Review B, ISSN 1098-0121
- Issue year
- 2010
- Vol
- 82
- ASJC Classification
- ;
- DOI
- DOI:10.1103/PhysRevB.82.134412 Opening in a new tab
- Language
- (en) English
- Score (nominal)
- 0
- Score source
- journalList
- Publication indicators
- = 6; = 6; : 2010 = 1.447; : 2010 (2 years) = 3.774 - 2010 (5 years) =3.364
Share
- Uniform Resource Identifier
- https://researchportal.amu.edu.pl/info/article/UAM0c5322fcef2e49aa81f672589212ff72/
- URN
urn:amu-prod:UAM0c5322fcef2e49aa81f672589212ff72
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or PerishOpening in a new tab system.