Thermally induced dynamics in ultrathin magnetic tunnel junctions

Thermally induced dynamics in ultrathin magnetic tunnel junctions

We consider the magnetization dynamics induced by thermally induced spin transfer torques in thin FeMgOFe tunnel junctions. The magnetization dynamics is described by the Landau-Lifshitz-Gilbert equation, including the thermal torques as computed from first principles. We show that the angular skewn...

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Veröffentlicht in:Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2013-07, Vol.88 (2), Article 024406
Hauptverfasser: Ogrodnik, P., Bauer, G. E. W., Xia, Ke
Format: Artikel
Sprache:eng
Schlagworte:
Condensed matter
Criteria
Dynamics
Instability
Magnetization
Mathematical analysis
Stability
Tunnel junctions
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Zusammenfassung:We consider the magnetization dynamics induced by thermally induced spin transfer torques in thin FeMgOFe tunnel junctions. The magnetization dynamics is described by the Landau-Lifshitz-Gilbert equation, including the thermal torques as computed from first principles. We show that the angular skewness of the torques importantly modifies the dynamics, e.g., leading to different instability criteria.
ISSN:1098-0121
1550-235X
DOI:10.1103/PhysRevB.88.024406