Thermally induced dynamics in ultrathin magnetic tunnel junctions | Zendy

Piotr Ogrodnik | Zendy; G. Bauer | Zendy; Ke Xia | Zendy

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Thermally induced dynamics in ultrathin magnetic tunnel junctions

Author(s) -

Piotr Ogrodnik,

G. Bauer,

Ke Xia

Publication year - 2013

Publication title -

physical review b

Language(s) - English

Resource type - Journals

eISSN - 1538-4489

pISSN - 1098-0121

DOI - 10.1103/physrevb.88.024406

Subject(s) - magnetization dynamics , condensed matter physics , dynamics (music) , magnetization , torque , instability , spin transfer torque , thermal fluctuations , magnetic moment , physics , thermal , spin (aerodynamics) , materials science , magnetic field , mechanics , quantum mechanics , thermodynamics , acoustics

We consider the magnetization dynamics induced by thermally induced spin transfer torques in thin Fe|MgO|Fe 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

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